5.b. There are various strategies to manage hazards from earthquake activity. Flashcards
(38 cards)
How is Japan able to mitigate against earthquakes?
(Case study: Living with earthquakes – Japan)
High economic wealth.
Highly developed education system.
Stable political environment enable it to cope with the constant threat of high-magnitude earthquake events.
Japan has developed a high level of what?
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Japan)
High level of preparedness to deal with earthquake hazards.
What is JMA responsible for?
(Research and monitoring)
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Japan)
Providing information and warnings of impending earthquakes and tsunamis.
What lies at the heart of Japan’s mitigation strategies? What does this do?
(Research and monitoring)
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Japan)
The Japan Meteorological Agency (JMA).
They mitigate against natural disasters, including earthquakes and tsunamis and extreme weather events such as typhoons.
Japan’s detailed disaster plan involves what? Give examples.
(Research and monitoring)
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Japan)
Involves a wide range of organisations.
E.g. governments, medical services, fire, military, transport, power and telecommunications companies.
State 5 features of building design that help to mitigate against Japanese earthquake vulnerability.
(Buildings with aseismic design)
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Japan)
E.g. steel frames and braces capable of moving without collapsing.
E.g. Rubber shock absorbers in foundations.
E.g. Very deep foundations into solid rock.
E.g. A ‘soft storey’ at the bottom of tall buildings such as a car park, which collapses, allowing upper floors to sink down on to it; counter-weights on roofs, which move during an earthquake.
E.g. Suspension bridges capable of movement rather than rigid cantilever design.
E.g. Flexible joints in underground utility pipes, e.g. gas and water.
State 5 general mitigation strategies used in Japan.
(Buildings with aseismic design)
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Japan)
Fire proofing older wooden buildings, which are common in historic districts of Japanese cities.
Land-use zoning that provides for open spaces where people can assemble after an earthquake.
Controlling building in locations susceptible to excessive ground shaking or liquefaction.
Tsunami warning systems off the coast.
Refuge sites on permanent stand-by equipped with tents, bottled water, blankets.
Community preparedness - ongoing education and training for all ages.
Is Japan able to mitigate loss well? How?
(Mitigating the loss)
(Case study: Living with earthquakes – Japan)
Being one of the most advanced countries in the world, Japan has vast resources to manage short-term losses caused by earthquakes.
How does Japan often mitigate against loss? What is the aim?
(Mitigating the loss)
(Case study: Living with earthquakes – Japan)
Well-rehearsed recovery and reconstruction plans, at national, regional and local levels, can be actioned immediately following an earthquake, e.g. small villages, key infrastructure.
The aim is to rebuild physically, economically and socially as quickly as possible.
Recent earthquakes have caused Japan to do what?
(Conclusion)
(Case study: Living with earthquakes – Japan)
Reappraise how it manages the impacts of earthquakes and related hazards.
What was completed after the Kobe quake of 1995?
(Conclusion)
(Case study: Living with earthquakes – Japan)
Much work was undertaken re-strengthening structures such as bridges and roads that were previously thought to be safe from shaking.
What is Japan constantly doing to its mitigation strategies?
(Conclusion)
(Case study: Living with earthquakes – Japan)
Updating its exposure, vulnerability and loss.
Compare Japan’s (ACs) resilience to EDC and LIDC resilience.
(Conclusion)
(Case study: Living with earthquakes – Japan)
The country, industries, and businesses and families tend to have the resources that give them a high degree of resilience.
By contrast, EDCs and LIDCs have fewer resources and so their resilience is much less.
EDCs and LIDCs have a low level of resistance. What does this mean as a result?
(Conclusion)
(Case study: Living with earthquakes – Japan)
The impacts of earthquake disasters in the short term are more serious, and longer lasting.
Since 2010, the Haitian population has become very preoccupied by what?
(Case study: Living with earthquakes – Haiti)
By the risks posed by earthquakes in this multi-hazarded country.
However, there are significant obstacles in building systems that mitigate against the impacts of these tectonic hazards to reduce vulnerability and improve the capacity to cope.
What is the USGS? USAID?
(Case study: Living with earthquakes – Haiti)
USGS: United States Geological Survey.
USAID:US Agency for International Development.
Prior to the 2010 earthquake, what was there nothing of in Haiti? Why is this not surprising?
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Haiti)
There was no monitoring system in Haiti.
This is not surprising given the very long gap since the previous major earthquake in 1860.
What has been developed in Haiti to mitigate liquefaction hazards in Haiti? What is a negative of this?
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Haiti)
Progress has been made with hazard maps developed where none existed before, showing areas especially at risk, e.g. areas with softer sediments liable to liquefaction.
However, there is no national disaster risk management plan; and no education programme so that children know what to do during an earthquake event.
Prior to the 2010 earthquake there was no monitoring systems in place. What did poor Haitians have more of a focus on?
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Haiti)
Focused much more on the frequent challenge of hurricanes.
Following the earthquake, who helped Haiti? How? Who else provided support?
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Haiti)
Following the earthquake, the USGS has helped with earthquake awareness and monitoring in the country, with continued support from USAID.
How many seismic stations are now operating in Haiti? What is a negative of this?
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Haiti)
A total of 15 seismic stations are now operating in Haiti.
However, the monitoring facilities are not earthquake resistant and there is not enough money to staff a 24-hour team.
What is one of the most pressing problems in Haiti?
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Haiti)
The inability of the state to enforce earthquake-resistant building design.
That has been an issue elsewhere, not least in Italy and even in Japan, but it is much more challenging in poor societies such as Haiti.
In its history up until the 2010 earthquake, the most significant hazards were what? What was done?
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Haiti)
Hurricanes.
These were mitigated against by using concrete in construction - this gave the best protection from high winds.
Is Haiti’s government helping to mitigate vulnerability? Give an example.
(Mitigating the vulnerability)
(Case study: Living with earthquakes – Haiti)
There is no government approved building code and given that the country has had multiple leaders since 2010, stability and long-term planning are not evident.
E.g. the Bureau of Mines and Energy, which oversees earthquake surveillance among many other responsibilities, has an annual budget of just $US600,000 which is 0.04% of the national budget.