Showing posts with label Geohazards. Show all posts
Showing posts with label Geohazards. Show all posts

Wednesday, 26 September 2012

Lessons from China (2) - Active Landslide Video

Below is a video of an active landslide in the Gansu Province of China, observed on the 13th September 2012. This slope face had reportedly been falling apart since the previous afternoon, and had resulted in the evacuation of a number of houses. At the base of the slope is a small river, and there was concern that the material could block the river and result in flooding.

You can see a number of features within the video, including large boulders bouncing and a constant (dry) flow of material.


Monday, 24 September 2012

Lessons from China (1) - Introduction

As highlighted on the GfGD blog last week, I have recently returned from the First International Symposium on New Techniques for Geohazards Research and Management in the Gansu Province of China. This conference encompassed two days of presentation relating to landslides, debris flows and management strategies followed by four days in the field, travelling 1200km by road to visit sites of major landslide activity.

The beauty and magnitude of the landscapes there was enormous, ranging from magnificent loess terraces, to sharp limestone mountains and vast sediment-laden rivers. It was, however, the raw vulnerability of communities that impacted me most - The desperate need for improved science and engineering, but an even greater need for better communication, decision making, education and understanding of how to build resilience. 

Posts about various aspects of this trip, case studies and challenges, will come in the near future. In the meantime, here are a few photos taken from the trip. Look out on Wednesday for a video of the active landslide in the final picture below.

Landslide in loess terrain (Heifangtai, Gansu Province, China)
(c) Geology for Global Development, 2012

Construction of a large debris flow channel to reduce the risk to the community at the bottom of the valley. A deadly flow killed over 1500 people in 2010.
(Zhouqu, Gansu Province, China)

(c) Geology for Global Development, 2012

An active complex landslide - with failure occurring in both the loess material and bedrock
(Gansu Province, China)

(c) Geology for Global Development, 2012

Monday, 17 September 2012

China: New Techniques for Geohazards Research and Management

Last week I was in China at the First International Symposium on New Techniques for Geohazards Research and Management in Gansu Province, China. This conference combined a series of talks about geohazards (particularly focusing on slope instabilities and debris flows) and hazard management strategies with a series of field visits around the Gansu Province in China. One of these visits includes to Zhouqu, where a significant landslide in 2010 killed more than a thousand people. 

Whilst mainly presenting information about my PhD research, I also took the opportunity to share some of the principles and work of GfGD. Any management of geohazards must take a holistic approach, understanding the importance of both engineered solutions, and also reducing community vulnerability. GfGD is working to champion a greater understanding and practice of the latter within the geoscience community. Next week we will post a report of the conference, together with a number of photos and case studies. 

Wednesday, 5 September 2012

Dan Sharpe: The Importance of Quaternary Mapping in Global Development

After a busy summer of various field projects, Dan Sharpe is back and starts this terms blog posts by looking at the importance of Quaternary mapping... 

Quaternary mapping is a technique not taught on many undergraduate geoscience courses, however it is one that is vital in the field of global development. Mapping Quaternary deposits can tell us whether an area of ground is unstable, problematic (in terms of future development) or a good aquifer and thus is crucial in construction and planning, along with natural hazard protection and water resource management.

Quaternary is the name given to the final epochs of the Cenozoic era; the Pleistocene, the Holocene and the slightly more controversial current Anthropocene (an informal term for the period of human interference on our planet). In other words, roughly the past 2.5-2.6 million years (a tiny fraction of the 4.54 billion years the Earth has existed). Mapping these deposits show the levels of interference of surface processes such as glaciation, desertification, floods and even surface geochemistry and can be a crucial component in understanding a hazard or resource.

Natural Hazards

The type of surface deposit can be a very important control on the intensity of a natural hazard. In particular, the porosity of a soil can seriously affect the flood risk in an area, and mapping this can highlight areas under threat. In developing nations, flooding proves a huge setback in physical development and loss of lives - particularly in southern Asia with the presence of the El Nino and frequent typhoons. Understanding and mapping areas at risk can not only reduce the loss of life during periods of flooding but also mitigate the damage to infrastructure, meaning that there is less need to repair but focus can instead be placed on development.

Marco Dormino/ UNDP
Indeed soils and more specifically soil porosity and consolidation play an important role in other hazards too. The Haiti earthquake of 2010 killed over 300,000 people. One of the major problems in the area was that many of the poorly constructed homes were built on unconsolidated land that liquified during shaking (for details see this information sheet). Liquefaction occurs in almost every earthquake on some scale but in this example an area large enough to cause serious harm was affected, and thus large scale failure of buildings and roads occurred. Understanding the ground beneath which construction is taking place is therefore crucial in aiding the development of nations susceptible to natural hazards.


Water Resources

Sub-surface characteristics can be crucial in the trapping or release of water, particularly precipitation. Mapping quaternary deposits will determine levels of vegetation and type of ground. Levels of surface run-off or infiltration can be mapped as a result. Potential traps may be identified and provide important information on where water will hold underground and where a resource can be exploited. This is an increasingly vital skill in developing nations, particularly Africa. The World Bank Institute (WBI) released a statement in 1999 saying:

“... over the past few decades, use of water has increased, and in many places water availability is falling to crisis levels. More than eighty countries, with forty percent of the world’s population, are already facing water shortages.”

This is a trend that has not stopped and thus it is crucial that geoscience courses include techniques to find water resources, and more generally gaining a greater understanding of near-surface deposits from recent geological history. 

Quaternary mapping is not yet fully integrated into many courses at universities, but is an increasingly important technique when using the earth sciences to aid in global development.

Friday, 31 August 2012

Friday Photo (46) - Disaster Planning in the Solomon Islands

EVACUATION PLANS - SOLOMON ISLANDS
A list of evacuation sites along with maps detailing hazardous areas, on a notice board in Lemboni, Solomon Islands. We were told this is the only one of its type in the area.
Photo Courtesy of Greg Smith/David Cavell (University of Leicester), August 2012

Friday, 24 August 2012

Friday Photo (45) - Lahar Dam (Mt. Merapi)

MT. MERAPI, INDONESIA - LAHAR DAM
A new type of dam installed on the flanks of Mt. Merapi
that will hopefully minimise the risk of damage further downstream.
Photo Courtesy of Laura Westoby - University of Leicester

Friday, 3 August 2012

Friday Photo (44) - Lahars on Mt. Merapi

MT. MERAPI, INDONESIA - LAHARS IN RIVER CHANNELS
On the south-east flank of Mt. Merapi, Indonesia, many river channels suffer from lahars in the rainy season and so the government has been building barriers to try and control them.
Photo Courtesy of Laura Westoby - University of Leicester

Wednesday, 18 July 2012

University Project on Mt Merapi, Indonesia – Laura Westoby

Mount Merapi
Laura Westoby, aged 21, and currently studying for an MGeol degree at the University of Leicester will soon begin a four week placement in Indonesia. GfGD will be following and promoting her work over the next month! Laura writes...

"I will be travelling to Indonesia to undertake a placement with Gadjah Mada University in Yogyakarta, Java. As part of my MGeol degree at Leicester I have to complete a report in my 4th year. I have decided to focus this report on Mt Merapi and how it affects the local community. During my visit I hope to meet members of the community who have learnt to live with the danger of Mt Merapi and investigate processes that occur in the community before, during and after an eruption. I also hope to see how research is conducted at the University and how this information is relayed to the community. When I return to Leicester I will integrate my visit with a GIS project and a literature review to create my report.

This is a fantastic opportunity that will hopefully help me develop confidence when visiting new places, meeting new people and travelling alone. It will also introduce me to a side of geology that really interests me – the social aspect and one that hasn't cropped up very often throughout my degree. I will hopefully have the chance to learn some new skills whilst out there, such as how they monitor the volcano and field mapping, and also integrate myself with the local culture – I will be staying for a month!

Hopefully after my visit a connection with Gadjah Mada University will be established allowing more exchanges to take place in the future, both from the UK and also from Indonesia. With an exchange scheme established it will hopefully be easier for students to find funding in advance of a visit."

Wednesday, 4 July 2012

Resources: GDACS

The Global Disaster Alert and Coordination System (GDACS) is a joint project between the United Nations and the  European Commission, and disaster managers worldwide - working to improve alerts, information exchange and coordination in the first-phase after major sudden onset disasters.

GDACS offers a helpful service, where you can subscribe for notifications and details of major (and minor) disasters, such as earthquakes, tropical cyclones, floods. This information is sent to a mobile/e-mail device as and when these disasters occur.

This is not only helpful for disaster management professionals, but also a useful way of keeping in touch with what's happening across the world - especially those things that don't make the UK national news (often in developing countries). For example, flooding in India over the past month has displaced more than one million people - and yet this has barely scratched the media in Europe.

Monday, 25 June 2012

GfGD Blog Competition (Runner-Up): Natural Disasters - The importance of education in long term recovery


Our second, and final, runner-up in the GfGD Blog Competition was Daniel Sharpe, a geology student at the University of Leeds. Dan writes here about the importance of education in long-term recovery from natural hazards. You can read more of Dan's work here:

The bridge between short and long term recovery is rarely crossed in developing nations. Even in economically prosperous countries it is difficult, with aftershocks of Hurricane Katrina still rumbling through the U.S. and the more recent tsunami that ruptured the coast of Japan still having significant impacts on communities. Surely more can always be done?

Through personal experience I have seen how recovery can be slow and emotionally strenuous. In 2007 I visited the south-west coast of Sri Lanka, a region devastated by the tsunami of 2004. Two and a half years on, the entire coast was still ruined. Broken houses sat derelict, an unceremonious reminder of the lives lost. Rusting train tracks, flowers lying roadside, and crumbled memories encapsulated within the polished memorials ran parallel to the re-surfaced highway.

After the publicity subsided so did the financial aid and little could be done to continue to assist those who needed support. To protect developing communities for generations a natural response needs to be instilled in people's minds. Educating people on how to deal with hazards should be at the forefront of aid efforts. As I write this news has sparked about a magnitude 8.7 earthquake that has struck near Sumatra, very similar to that of 2004. The news now is not about the loss of life but the reaction of the local people. Granted, fortunately no tsunami proliferated from this earthquake but the immediate reaction of people was to flee to high ground. Evacuation schemes were efficient and people climbed hills and onto roofs in the knowledge that they would be safer. It can be assumed that should a tsunami have formed many lives would have been saved as a result of past experience and teaching, and this knowledge now needs passing down to younger generations; a continuation of experience and learning.

A classic case study is that of Japan. A nation that regularly suffers earthquakes, they have developed and become more educated in natural hazards and the loss of life has significantly reduced. Before 1950 the average number of deaths per earthquake was 13,000 compared to just 1,200 after, despite the average magnitude of the events being almost identical. The high level of construction quality in Japan is greatly responsible and sets an example to everyone, but with an increasing population this decrease in fatalities can also be attributed to the education of citizens. Regular earthquake drills act like fire drills in the UK, and it is now rooted in their minds how to respond should shaking ensue. 

These are two examples of how developing and now developed regions have reacted to the need for education, reducing fatalities both short and long term. China has also recognised the need for educating its citizens. In a country where deaths from natural disasters have actually increased since the millennium, the government is set to improve monitoring systems, raise public awareness and train 2.75 million people for a new disaster rescue and relief scheme. This is the attitude needed in order to reduce the loss of life in developing nations. Educating people on how to prepare, respond and relieve themselves and others from natural disasters is crucial. Coupled with a continued support from governments and NGOs the loss of life from natural disasters can be dramatically reduced; as we have seen across the Indian Ocean and Japan.

Monday, 7 May 2012

Dan Sharpe: Recent News - Three Gorges Dam

Dan Sharpe, regular GfGD Columnist, writes...

Three Gorges Dam
A subject of many an A-level geography essay, the construction of the Three Gorges Dam was completed in 2006 and the 181m high dam is thought to have cost nearly £25 billion to build. It is the second largest producing dam with regards to electricity output (behind the Itaipu Dam on the border between Brazil and Paraguay) but this has come at a serious cost, and not just financially. About 1.4 million people have already been removed from their homes as the surrounding valley was flooded, and the Chinese Ministry of Land Resources have just announced that a further 100,000 people are to be evacuated due to safety issues.

The dam caused an area of over 600 square kilometers to flood and finally filled up to this maximum in 2010. Since then the number of geological disasters has increased dramatically. Landslips and rockfalls have led to the identification of 5,386 hazardous sites with banks already collapsing in hundreds of places. The unstable nature of the banks is caused by the huge seasonal variation in water level and it is this variation that is causing thousands more to be moved from their homes.

Submerged Cities:
Photos from1987 (bottom) and 2006 (top)
(USGOV) 
The controversial dam was the dream of revolutionary leader Mao Zedong and has submerged 13 cities, 140 towns and over 1,300 villages - staggering figures that have frequently been frowned upon by many nations (and geography students of course). More recently, a report published by the environmental group Probe International suggested that the entire upper Yangtze (where 20 dams are located, including the Three Gorges) is at risk from a catastrophic collapse of these man-made structures. The idea focused around the seismic activity in the area and the theory that a failure of one dam could cause a cascade of water collapsing further dams, which in a heavily populated area is clearly a significant problem.

The Three Gorges Dam is perhaps the last example of China’s historical dictatorship, a construction that typifies the ‘greater good’ mentality with little care for the collateral damage to local people. Now, in a westernising government, this fiercely growing nation has admitted problems regarding this structure. They have conceded that they have not done enough to ensure a similar quality of life for those forced to move, and many families are beginning to move back to the banks of the reservoir increasing the fatality risk from natural disasters. Further to this, there is suggestion that the reservoir increases the risk of earthquakes in the area, and has completely changed the ecology of the river even driving the Yangtze River Dolphin to extinction.

The long term goal was to provide a sustainable source of energy, which has certainly been fulfilled, as well as controlling damaging floods that used to regularly hit the area. In 2010 for example, the South China Floods caused the reservoir to rise by 3m in less than 24 hours. Due to the control of the dam, the outflow of water was reduced from 70,000m3/s in to the reservoir to just 40,000m3/s out, effectively reducing the impacts of serious flooding on the middle and lower river.

The Three Gorges Dam is a difficult issue. On one hand it is fantastically resourceful and very good at controlling floods; however it has ruined hundreds of thousands of lives. People have been forced to move into lower standard housing in poor areas with no prospects of work, and the government has done little to support them. This project was an example of what we can achieve with hydro-electric power, but due to the political situation in China at the time, it cannot be considered fully sustainable as so many citizens were displaced. As China are beginning to accept the problems with the dam, hopefully quality of life will increase for those who once suffered and the safety of the area improved. Still, with increasing evidence for the possibility of a catastrophic failure due to seismic activity, it may not be the last negative we hear about the geography students’ favourite case study.

Wednesday, 2 May 2012

EGU Debate: The Role and Responsibilities of Geoscientists for Warning and Mitigation of Natural Disasters


Marco Dormino/UNDP
The European Geoscience Union’s General Assembly gathers over 11,000 people including students, academics, the media, those in industry and policy makers. Of these 11,000 there are a significant number of people working on various aspects of natural hazards, as seen in the broad range of talks and sessions in this division. Sessions focused on the physics and mechanics of a broad range of hazard events, forecasting and prediction, early warning tools, communication and geoethics and much more.

One session that took place was a ‘Great Debate’ on the role and responsibilities of geoscientists for warning and mitigation of natural disasters. The debate panel included representatives from insurance, academia and the EU Civil Protection Agency. This discussion was one that came up several times over my week, in various sessions, discussions and often over a glass or two of wine.

Many natural disasters can be prevented or the impacts significantly reduced, and geoscientists have a crucial role to play within this work. If geoscientists want to be most effective within this important field they must strengthen their communication skills, and think about how they can better ensure their knowledge and information is presented to the public, policy makers and politicians. But the question is not only how can it be presented, it is how can the information be presented well and effectively.

(Tanzania)
Communication to Local Stakeholders
It was frustrating, and at times very sad, to hear some of the comments in this debate. For example, a suggestion that geoscientists should make better use of open-source journals was put forward as a way to make sure our information gets through to the public. Whilst open-source is very helpful for many reasons, I don’t think that this is a solution at all to the great communication divide between scientists and the public. The language, format and style of scientific papers – be they open source or pay-to-access – is focused on communicating information to their peers. I have studied geology for over 10 years now and yet pick up many papers and struggle to understand what they are saying and how the research is relevant. Writing for open-source, or placing our technical papers on personal websites (which was also suggested) will give geoscientists access to more information. It will not, as is desperately needed, improve communication of this essential knowledge to other key stakeholders. We need to see a significant change in the mentality of scientists to incorporate, value and prize effective public engagement and outreach into their research projects. A paradigm shift from ‘come look at what we’re doing’ to ‘let us come to you and show you what we are doing’ is absolutely foundational to improved communication.

Barriers to Communication
(Adapted from Liverman, 2010 -
Geophysical Hazards:Minimizing Risk,
Maximizing Awareness [Ed. Tom Beer]) 
I believe we can increase the effectiveness of geoscientists’ contribution within disaster risk reduction (DRR) through a number of developments to geoscience courses. Whilst students are not by any means the only people working within DRR, we can help overcome some of the communication barriers (highlighted in the diagram to the left, adapted from Liverman, 2000) by changing the way graduates approach and enter into this work. Such developments include an overhaul of professional skills modules in undergraduate and postgraduate geoscience courses. These must include training in how to communicate to non-specialists or multi-disciplinary audiences, training in how to write a press release or general-interest article, and some basic teaching on issues such as community participation and sustainability.

Whilst I am not suggesting that these are the only steps that must be taken - they are important and will, I believe, enable those within the exciting field of geoscience to make a positive and greater contribution.

Thursday, 19 April 2012

GfGD at EGU 2012

Next week the European Geoscience Union (EGU) will be hosting their General Assembly in Vienna, Austria. This annual gathering draws over 10,000 people from across the world with presentations and posters on a broad range of geoscience subjects.

Alongside a presentation on my PhD research into ‘Multi-Hazard Risk Analysis’ I will be giving a short presentation about the work of GfGD in training and equipping young geoscientists to communicate and do effective disaster risk reduction in the developing world. The talk will outline two gaps that I believe hinder the engagement of young geologists with this important area of work: (i) the lack of teaching and discussion opportunities on undergraduate and postgraduate geoscience courses regarding vulnerability and disaster risk reduction, and (ii) the lack of opportunities for students/recent graduates to gain experience in this sector.

GfGD is working to address these barriers through (i) the development of ‘soft skills’ – in particular communication skills and learning to share information to a wide range of groups, (ii) opportunities to engage with issues such as community vulnerability and education – through university seminars, and (iii) opportunities to gain experience in the sector. It is hoped that the opportunity to give this presentation will generate some interesting discussion amongst academics about their teaching schedules and course content, as well as raise the profile of GfGD to a wider audience.

For an excellent paper outlining the challenges and suggested solutions of science communication within disaster risk reduction, see D. Liverman (2010) Communicating Geological Hazards: Educating, Training, and Assisting Geoscientists in Communication Skills in T. Beer (ed.) Geophysical Hazards, International Year of Planet Earth.

Monday, 16 April 2012

Indian Ocean Earthquake: An Opportunity to Assess Disaster Risk Reduction Progress

Shake Map - USGS
Last week many of us will have been glued to our televisions and laptops, waiting to see what would follow the significant M8.6 earthquake off the coast of Indonesia. It was a relief to finally hear the reports that the earthquake was caused by horizontal plate movement (strike-slip) rather than vertical movement. Whilst there was still a small chance of a tsunami, including from submarine landslides, the ground rupture itself was much less likely to have triggered a tsunami. A significant aftershock followed, and many smaller ones. More aftershocks will occur over the coming weeks and months - with a possibility of ones up to an approximate magnitude of 7.6-7.8.

There are minimal reports of damage, but some consensus that there were five fatalities - some as a result of shock and heart attacks. There was clearly panic and fear across the region as the prospect of another devastating tsunami was comprehended. Most people's worse fears were not realised, although for the families of the five killed and others injured this is not necessarily the case.

It is hard to assess how well systems put into place after past earthquakes and tsunamis worked. There have been fewer reports than I imagined there would be on what this massive earthquake and the reponse by government and communities shows about the effectiveness of lessons learnt. Thankfully, the authorities in Indonesia and surrounding countries, rather than having a massive reconstruction to deal with, now have an opportunity to undertake a widespread assessment of what went well and what didn't go well. Authorities have had a large scale event they can now analyse and use to see how well the authorities communicated warnings (particularly to the most vulnerable people), and how well people responded to these warnings. They can then learn more important lessons and refine emergency procedures for the next time a huge quake hits the region. They can also constrain the most pressing needs within disaster risk reduction.

The event last week in the Indian Ocean was a tragedy for all those that lost family and friends. But from this tragedy is an important opportunity for the authorities to learn valuable and crucial lessons that could save many many lives in the future.

Further Reading

Monday, 13 February 2012

Dan Sharpe: Contrasting Earthquakes in Christchurch and Haiti

Dan Sharpe, aged 19, is a second year geology student at the University of Leeds. With an avid interest in travelling, he has recently spent three and a half months in the wilderness of Northwest Canada and has also climbed the highest active volcano in the world. Currently fundraising for his participation in the Milan City Marathon in April, Dan spends most of his time out of lectures running or in the pool, or the pub of course.

Dan has a keen interest in development and will be joining the GfGD Blog writing team as a columnist - covering topics of interest to him - and hopefully many of you, enjoy!

Source: Flickr
2011 was a year of unparalleled numbers of disasters and the first six months saw over $265 billion in losses (study by Munich Re; a company that specialises in disaster insurance). On the 10th January floodwaters rushed through Queensland Australia, waters that killed 17 people and caused millions of dollars of damage; an event that carried on affecting lives through to February. This month also saw a devastating earthquake hit Christchurch New Zealand, and this 6.3 magnitude hazard was the largest of six earthquakes to strike the city on the 22nd February. 182 people lost their lives as a result of this event which, for such a large and repetitive series of earthquakes, is considerably lower than it may have been. In comparison to another hazard event in 2010, this low death toll is nothing short of remarkable. The earthquake that shook the capital of Haiti in January 2010 recorded 7.0 on the Richter Scale, but the death toll came in at over 300,000. Both earthquakes occurred at a relatively shallow depth increasing their severity, and both had an epicentre less than 25km from the cities so why was one so much more deadly?

Marco Dormino/UNDP
The slums surrounding Port-au-Prince, Haiti, are some of the worst in the world. Corrugated iron and wooden shacks are built on foundations of unconsolidated mud and rock. Liquefaction of these poor foundations means these temporary living spaces easily collapse, entombing the residents inside. All of the main buildings had inadequate building quality and no earthquake protection technologies, so many collapsed partially if not entirely including the three medical centres. In contrast, the buildings of Christchurch are soundly constructed and much more resistant to earthquakes. The hospital, although partially damaged, remained open throughout the event to treat the injured and although nearly a quarter of the residential buildings in the city centre are expected to be demolished, few collapsed in the event itself ensuring the survival of most residents.

In developing regions, response mechanisms need great improvement. NGOs and foreign governments can only do so much to repair the damage done by a natural disaster, so greater internal support and infrastructure is needed to respond rapidly to a hazardous event. For three days after the Haiti earthquake the only medical facility was the Argentine Military Field Hospital and survivors were left to search for victims buried in the rubble, alive or dead.

Geoscience Education (c) GfGD

The role of the geologist is to identify and to teach. With a better understanding of earthquakes in developing regions comes the opportunity to reduce risk through reducing vulnerability. Working with regional and governmental geologists to map areas of poor foundations and poorly consolidated ground can also inform risk reduction. The earthquake on the 10th January 2010 was different because of the geology itself. The shallow depth of the earthquake meant more energy reached Port-au-Prince and the geology and relief of the surrounding area ‘funnelled’ the waves down towards the city. With stakeholders having a better understanding of the regional geology, more preparation could have saved countless lives two years ago. A lack of geological analysis of this developing nation, however, left it blind to the problems it then faced. Installing a basic knowledge of geosciences in schools and government departments could help reduce risk before hazards even happen, surely a crucial way of building resilience and reducing vulnerability, thus bringing Haiti’s death toll closer to that experienced in Christchurch.

Friday, 27 January 2012

Monday, 23 January 2012

Guest Blog: Earthquake Education in Central Asia

Claire Fyson is in her fourth year at the University of Cambridge, reading Natural Sciences and specialising in Geology. Last year she became one of GfGD's first University Ambassadors - leading the GfGD Cambridge group with co-student Tim Middleton. Claire has kindly written a very interesting guest blog following a GfGD seminar they organised in Cambridge.

Solmaz Mohadjer
 Having been taught bits and pieces about the way the Earth works since I started secondary school, I’ve never quite realised how lucky I’ve been. Natural hazards such as tornadoes, volcanic eruptions, and earthquakes have been explained to me in great detail - I’ve even learnt what to do in the event of such disasters. Sadly, it is often the people who live in regions prone to earthquakes and other natural hazards that are the least informed and prepared to respond appropriately. In the first of our Geology for Global Development seminars at the University of Cambridge, Solmaz Mohadjer from the ParsQuake Project highlighted how little the people of Central Asia know about the earthquakes that they experience on a regular basis. She also talked about how to tackle the problem – how a basic understanding of Earth sciences and local geohazards can save lives if disseminated and used in the right way.

The region of Central Asia is experiencing deformation as a result of the collision between the Indian and Eurasian plates. Unfortunately, regions with the highest strain rates are often heavily populated. As part of the fieldwork for her Masters in geophysics, Solmaz spoke to the locals to find out how much they knew about earthquakes and earthquake preparedness. For a variety of reasons, many people in the region find it difficult to reconcile their cultural and religious beliefs with the need to prepare for earthquakes. For example, some people in Pakistan believe earthquakes are divine punishments for sins. By contrast in Tajikistan, some believe that living or dying in an earthquake is part of a divine plan, and therefore, preparing for earthquakes strikes them as pointless. This seems akin to the evolution debate in the US, but in this case the consequences are considerably greater: – people’s lives are at risk.

Why does the earth shake?
Of the students who participated in Solmaz’s research, none knew how to prepare for an earthquake, and yet all had felt at least one in their lifetime. The locals had become so accustomed to the tremors that two earthquakes felt by Solmaz during her first night in Dushanbe, Tajikistan, went un-noticed by her students and neighbours. When asked how they dealt with earthquakes, 37% of her students took no action – a worrying statistic given how dangerous the consequences of doing nothing might be. As for the mechanism behind earthquakes, a common explanation is that there is a giant bull inside the Earth that shakes its head when a mosquito lands on it.

Using a wooden block model
Here’s where the geologists come in. In response to her research, Solmaz created a 12-step education plan. This included simple but ingenious experiments covering topics such as the unpredictability of motions along faults (using wooden block models, see picture), liquefaction (using sand and water) and how to build an earthquake-resistant wall (using craft sticks). It is easy to see how such a programme could inspire locals to put some of their new knowledge into action.

Teachers Without Borders was asked to address a similar knowledge gap in the education system in Sichuan, China. Many teachers in this region lost loved ones in the 2008 Sichuan earthquake, so the task of educating them about such events was a sensitive one. Having been asked to do that by Teachers Without Borders, Solmaz focussed on making her assistance as sustainable as possible: she chose four dedicated geography teachers who she worked with over a year to build and implement an education programme about earthquakes and school safety. This is far better than a fly-in-fly-out approach, which has a much smaller impact. The involvement of local teachers means the education will continue in Solmaz’s absence, and that language and cultural barriers will no longer be a problem.

Returning to her own heritage, Solmaz has recently set up an organisation called ParsQuake (www.parsquake.org). ParsQuake’s mission is to raise levels of earthquake awareness, education, and preparedness in Persian-speaking schools and communities around the world. Through its website, ParsQuake provides education materials in Farsi, Tajik, Russian and English, and its members conduct training sessions in which the trainees eventually become the trainers. The theme of sustainability is clear, and Solmaz has future hopes of an earthquake education workshop in India, to be run by the trainees from Tajikistan and Afghanistan.

Ye Zhiping
Personally, I found this to be a very inspiring seminar. We hear all too often about the tragedies that result from natural disasters, but little about the wonderful people who are helping to save lives through education and action. Solmaz is one of those people, spreading her knowledge and love of geophysics to those who need it most. One of the stories that she shared at the seminar was of another such person in Sichuan, China. Appalled by the poor construction of his school, Ye Zhiping (right), the principal of Sangzao Middle School, raised over $60,000 for an earthquake retrofit project. The school subsequently survived a magnitude 8 earthquake in 2008 which killed about 10,000 children in classrooms around the region. All 2,323 of Ye’s students survived. This is an excellent example of how a little awareness and perseverance can help to avert tragedy. The message of Solmaz’s talk was clear: we have no excuse not to share our knowledge, especially when a lack of knowledge can have such a high cost.

Wednesday, 23 November 2011

Country Focus: Democratic Republic of Congo

This month, the Democratic Republic of Congo (DRC) are holding general elections for only the second time in around forty years. This huge country, around two thirds the size of western Europe, has been in the news for many reasons in recent years - mainly as a result of the conflict and civil war. It borders with several other countries, including Rwanda. Much of the tensions, fighting and genocide in this country have spilled over into the DRC, making increasing and contributing to their problems. The country's significant mineral resources have contributed to this conflict - with groups of militia fighting for control over resources such as diamonds, coltan, copper and gold. 

The inability of the government to establish law and order and fight corruption means they have not harnessed the wealth of the country's vast resources for the benefit of the nation - improving healthcare, education and infrastructure. This has contributed to the country having a life expectancy more than 20 years below the world's average, infant mortality more than two and half times greater than the rest of the world and an adult literacy rate well above the global average.

Source: Cai Tjeenk Willink
Adding to the problems of the country are the natural hazards that the country face. In 2002, for example, a volcanic eruption close to the town of Goma killed dozens of people and associated earthquakes caused further damage. Floods, droughts and landslides are also relevant hazards.

The BBC News have a very helpful article discussing the DRC on their website. One quote within the article that stands out particularly, and which is worth reflecting on:
"While DR Congo is clearly a failed state, Congolese society has not failed. On the contrary it is strong, vibrant, dynamic, tolerant and generous. People have a sense of taking charge of their own destinies."

Tuesday, 15 November 2011

Nyamuragira Volcano, Democratic Republic of Congo

This video, from the Guardian Natural Disasters and Extreme Weather page, highlights the growing activity of the Nyamuragira Volcano in the eastern Democratic Republic of Congo (DRC). You can find more recent footage of the eruption, which volcanologists believe is not a threat to the local population or gorilla community on the BBC website.



Monday, 14 November 2011

Guest Blog - Attachment with the Geological Survey of the Solomon Islands

This week we have a very interesting guest blog written by Laura Rose Wilson, a geologist at Leicester University, who spent time with another geologist from Leicester  working with the Geological Survey in the Solomon Islands.

"During the summer (2011) I worked in the Solomon Islands for 5 weeks with a friend, Sarah, as an attachment to the Solomon Islands Geological Survey.

The Survey, based in Honiara on Guadalcanal Island, is very basic, with intermittent electricity. The book cases and drawers full of maps and years of work on the Solomon Islands are very old, mixed up and poorly looked after. The rock sample store is falling down and many of the sample locations are missing. This is all a result of lack of staff, money and government input.

My work involved research on both Simbo volcano and the 2007 tsunami which affected the western province. Simbo volcano is in the Western Province of the Solomon Islands and is inhabited by approximately 1400 people. It is unknown whether this volcano is extinct or dormant and has had very little research carried out on it.  It was my job to research and collate as much data as possible in order to put together a hazard assessment of Simbo and bring the potential hazard to people’s attention. I found a lot of work had been started on hazard and disaster management, especially since the 2007 tsunami, however, this work does not progress fast, nor does a lot of it get finished. It is also very difficult to educate local people on potential disasters due to clashes with science and religion.

Sarah on the other hand did work towards establishing the uplift rate of the coral reefs on which Honiara is built and the surrounding hills. Sarah headed out into the field to examine the terraces and note their thickness and fossil content as well as bringing samples back to the office ready for sending to the UK for analysis.

The work ethic in the Solomon Islands is very laissez faire; when the electricity is on, computer games is often their pastime; when the electricity is off the staff head in to the run down, busy town centre. I therefore believe being there on an attachment was as beneficial to them as it was to us as it showed them a different work ethic; when we needed some information or a particular report, we made sure they would get it to us by the next day rather than 3 weeks later – this didn’t always work out though. We quickly developed patience as a key survival strategy.

Whilst working for the Survey we were allocated a member of staff to work with us as a counterpart. John Tuga from the island of Malaita (the most populous of the Solomon Islands) was assigned to help us out should we need it. This was very valuable to him as he was only an assistant geologist learning A-level standard Geology through a course with the Solomon Islands sector of the University of Papua New Guinea (PNG).  John hopes to go to the University of PNG in the next academic year to attain a degree in geology therefore our presence and knowledge gave him a head start. We taught him skills in the field such as rock recognition and description, recording and measuring key observations etc., as well as leaving him with geological books, dictionaries and charts which had been of use to us in the first few years of our degree and are not available to students out there. He showed a real interest and thirst for knowledge and was one of the few people there who was really dedicated to proving not all Solomon Islanders sit around day to day.
  
Throughout our stay in the Solomon’s we stayed with a local family in a small village outside of the town. This was a very interesting experience and we learnt about their way of life, which was much simpler than an average ‘Western’ household. The toilet and shower was outdoors and exposed and the kitchen was small with the food being cooked over hot stones. The daily meal was rice and cabbage with the rare treat of tuna or chicken. We were also very lucky being only one of two houses in the village to have electricity for a couple of hours each night. The family were very welcoming and the children were extremely excited and interested to see us.  They told us we were the first ever white people to come to their village. We learnt their traditions in exchange for helping some of the family members to improve their English.

Overall, as well as getting a lot from this trip for our own benefit and studies I feel we were also a great help to the staff at the Survey. We brought them new ways of thinking and an idea of how we work in England. The work we are doing will also give the Survey a head start on this research so that they can continue to develop and improve their knowledge in the future.

I believe attachments such as this are very important to share geological knowledge around the world and especially to the third world countries so that they can then continue the work themselves."