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earthquakes

Can the rubble of history help shape today’s resilient cities?

David Sislen's picture

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Ruins of the Church of Saint Paul, following the 1755 Lisbon earthquake. (Photo via Wikimedia Commons)
Ruins of the Church of Saint Paul, following the 1755 Lisbon earthquake. (Photo via Wikimedia Commons)



Did you know that, in 1755, Portugal suffered a catastrophic disaster so severe that it cast a long shadow over politics, religion, philosophy, and science?

During an All Saints’ Day mass in Lisbon in that fateful year, an 8.5-magnitude earthquake collapsed cathedrals, triggered a 20-foot tsunami, and sparked devastating fires that destroyed nearly 70% of the city’s 23,000 buildings.

The death toll was estimated between 10,000-50,000, leaving the center of a global empire in ruins, with losses equivalent to 32%-48% of Portugal's GDP at the time.

Never in the European history had a natural disaster received such international attention.

The “Great Lisbon Earthquake” had a resounding impact across Europe: Depictions of the earthquake in art and literature – the equivalent of today’s mass media – were reproduced for centuries and across several countries. Rousseau, influenced by the devastation, argued against large and dense cities in the wake of the disaster, while Immanuel Kant published three separate texts on the disaster, becoming one of the first thinkers to attempt to explain earthquakes by natural, rather than supernatural, causes.

In the years to follow, careful studies of the event would give rise to modern seismology.

How to protect metro systems against natural hazards? Countries look to Japan for answers

Sofía Guerrero Gámez's picture
Photo: Evan Blaser/Flickr
The concentration of population in cities and their exposure to seismic hazards constitute one of the greatest disaster risks facing Peru and Ecuador. In 2007, a magnitude 8.0 earthquake along the southern coast of Peru claimed the lives of 520 people and destroyed countless buildings. The most recent earthquake in Ecuador, in 2016, left more than 200 dead and many others injured.
 
Of course, these risks are not exclusive to Latin America. Considered one of the most earthquake-prone countries in the world, Japan has developed unparalleled experience in seismic resilience. The transport sector has been an integral part of the way the country manages earthquake risk— which makes perfect sense when you consider the potential consequences of a seismic event on transport infrastructure, operations, and passenger safety.

Back to school? Expanding access to disaster-resilient schools in Turkey for Syrian children and host communities

Johannes Zutt's picture


Today, Turkey hosts more refugees than any other single country—almost 3.3 million. The vast majority are fleeing the civil war in Syria, and almost half are under the age of 18. A devastating consequence of the children’s flight is the disruption of their education, with about one in four Syrian refugee children in Turkey—mostly in urban areas in southeastern and southern provinces—not in school.  Even so, due to tremendous efforts by the government of Turkey, about six in ten school-aged Syrian children now have access to either formal education facilities or temporary education centers in Turkey—a remarkable achievement, given the scale of the need and the rapidity with which it developed.

By the end of 2017, the Government aims to achieve full educational enrollment for all Syrian children.

From Istanbul to Manila—different fault lines, similar challenges

Elif Ayhan's picture
 “It’s not the mountain we conquer, but ourselves.” This was the response given by Sir Edmond Hillary when asked how he and his companion Tenzing Norgay became the first to summit Mt Everest, when so many before had failed. He believed we could all overcome our biggest challenge simply by deciding to act.

Is it possible for the same sentiment to be applied by government leaders – leaders who have the privilege and responsibility to preside over some of the world’s largest and most dynamic cities, especially those that share a common challenge in terms of seismic risk? Metro Manila, the megacity of the Philippines, the seat of government, and the engine of the national economy, has been destroyed numerous times over the last 500 hundred years by earthquakes, and currently sits upon a fault that is overdue to move. Istanbul, with world-class cultural heritage sites treasured by all, also sits near major fault lines expected to move any day. Tokyo and Wellington, the heart of government, culture, and history, also share exposed locations close to major fault lines.

In Wellington, decades of work – including the current Get Ready week! – have aimed to prepare the city for the next “big one”; but compared to the burgeoning megacities of Manila, Tokyo, or Istanbul, it is a small hill to conquer. How do you prepare these megacities with population of up to 15 million people? How do you climb the mountain of needs to build resilience? According to Sir Hillary, the answer is simple, you need to take the decision to accomplish something extraordinary.

In September 2017, the World Bank and the Global Facility for Disaster Reduction and Recovery (GFDRR) through the Japan-World Bank Program for Mainstreaming Disaster Risk Management in Developing Countries supported a knowledge exchange between Turkey and the Philippines focused on the challenge of building seismic resilience in megacities with high urbanization. For the World Bank, it was clear from the start that seismic risk is a priority on the Urban Resilience Agenda, when Johannes Zutt was able to explain to the visiting delegation the technical details of how base isolation is used to protect critical hospitals in Istanbul. The delegation saw impressive progress made by Turkey and Istanbul, from revised institutional frameworks, strengthened preparedness and response capabilities, and retrofitted schools and hospitals to adapted municipal e-services that ensure that the construction of resilient new buildings are approved fast and with the right safety checks. While massive seismic risk still exists within Istanbul, visible and concrete actions are also underway to improve the safety of its citizens.
 
 

 

Disaster risk and school infrastructure: What we do and do not know

Sameh Wahba's picture
This page in: Français
Credit: Tracy Ben/ Shutterstock

“At 14:28:04 on May 12, 2008, an 8.0 earthquake struck suddenly, shaking the earth, with mountains and rivers shifted, devastated, and parted forever….” This was how China’s official report read, when describing the catastrophic consequences of the Sichuan earthquake, which left 5,335 students dead or missing.
 
Just two years ago, in Nepal, on April 25, 2015, due to a Mw 7.8 earthquake, 6,700 school buildings collapsed or were affected beyond repair. Fortunately, it occurred on Saturday—a holiday in Nepal—otherwise the human toll could have been as high as that of the Sichuan disaster, or even worse. Similarly, in other parts of the world—Pakistan, Bangladesh, Philippines, Haiti, Ecuador, and most recently Mexico—schools suffered from the impact of natural hazards. 
 
Why have schools collapsed?

"Shaken, not stirred"

Joaquin Toro's picture

Since October 29, 2015, Central Asia experienced fifteen earthquakes of moment magnitude 5.0 or greater, which on average amounts to an earthquake every 6 days.  Among these events are two notable ones that occurred on December 7th and 25th of 2015. The first earthquake was a 7.2 magnitude event in Murghob district of Tajikistan.

This was the largest earthquake in the country since the 1949 Khait earthquake and it brought widespread damage throughout the Gorno-Badakhshan Autonomous Region, Tajikistan's largest province located in the Pamir mountains. Losses consisted of 2 fatalities caused by landslides,  multiple injuries, complete or partial destruction of over 650 houses and 15 schools and kindergartens, damages to several health centers and a small hydroelectric power station, and loss of livestock. Estimates suggest that 4,000 people have been displaced and over 124,000 were affected by the earthquake, leaving many people homeless over the harsh winter period.

​Air transportation – the critical infrastructure when disaster strikes

Charles E. Schlumberger's picture
Relief supplies being unloaded from a New Zealand C-130 at the airport in
Tuvalu after Cyclone Pam struck some outer islands. Photo: Nora Weisskopf

When disaster strikes, air transport is often the only feasible mode of transportation for first responders and urgently needed relief supplies. Following an earthquake, tsunami or hurricane, most roads, rail tracks and even ports become unusable, as they are blocked for days by debris. Airports, on the other hand, are remarkably sustainable and, within hours, usually become operational again.  

Kathmandu Airport: Already crowded
before the earthquake. 
​Photo: Charles Schlumberger
The main reason of this sustainability is that runways are on open space where debris of a disaster can be removed quickly. Furthermore, a runway usually suffers remarkable little damage even by a strong earthquake, such as experienced last week in Nepal or in Haiti in 2010. And even if there are cracks and holes in the runway, modern relief aircraft like C-130s can operate safely for some time.
 
However, the challenges of operating relief flights can quickly become overwhelming, especially for airports in developing countries that usually experience only moderate traffic. In Haiti, for example, more than 74 aircraft landed on a single day following the earthquake to unload supplies. Such traffic poses risks in the air; air traffic control, often hampered by inadequate or damaged surveillance installations, can’t cope managing all arriving aircraft. On the ground, where tarmac and taxiways are small, congestion quickly reigns which prevents the arrival of more flights.

Managing Disaster Risk in South Asia

Marc Forni's picture

Losses due to disasters to human and physical capital are on the rise across the world.  Over the past 30 years, total losses have tripled, amounting to $3.5 trillion. While the majority of these losses were experienced in OECD countries, the trend is increasingly moving towards losses in rapidly growing states. 
 
In a sense, increasing risk and losses caused by disaster are the byproduct of a positive trend - strong development gains and economic growth. This is because disaster loss is a function of the amount of human and physical assets exposed to seismic or hydrometeorological hazards, and the level of vulnerability of the assets. The richer a country gets, the more assets it builds or acquires, and therefore the more losses it potentially faces.
 
Rapid development across South Asia signals the need to commit greater efforts to increase resilience to disaster and climate risk. It also requires governments to develop a strategy to both protect against events today and to develop strategies to address the losses of the future.  This is a challenge somewhat unique to South Asia. The losses of today, predominantly rural flooding that impacts wide swaths of vulnerable populations, will begin to diminish in relative importance to the losses of the future.

So-called natural disasters are not unpredictable

Niels Holm-Nielsen's picture

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No two earthquakes in the world cause equal damage, according to scientists. This is particularly true in Latin America, a land of contrasts.

Whereas in 2010, an earthquake measuring 7 on the Richter scale ravaged Haiti, claiming nearly a quarter of a million lives, a few weeks ago in Mexico, an earthquake of similar magnitude (7.4) caused only a few cracks and minor injuries.

The earthquake that changed the world forever

Abhas Jha's picture

The Japanese phrase “Shikata ga nai (仕方がない)  -loosely translated as "it can't be helped" -captures the essence of the resilience and sense of duty towards one’s community that the Japanese people displayed in the aftermath of the Great East Japan Earthquake and Tsunami.


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