Living with Earthquakes in Nepal (IMPACTS) Case Study - H. E. Flashcards
On average how many major earthquakes does Nepal experience and of what approximate magnitude are they?
Two magnitude 7-8 Mw earthquakes and one +8 Mw earthquake every 80 years
What is the main issue with the earthquake records in Nepal compared to countries with similar earthquake vulnerability like Japan or Indonesia?
They are much less complete as small seismic events often go unrecorded
Which two plates are under Nepal? What type of boundary is it?
Indo-Australian plate converging with the Eurasian plate
Why does Nepal’s geological structure mean it is at greater seismic risk?
Pre-historic lakes filled many valleys, resulting in hundreds of meters of relatively soft sediment at depths of up to 600m. As seismic waves pass through this material, liquefaction can be a large hazard
When was the Gorkha earthquake? Where did it occur?
25th April 2015, 90km NE of Kathmandu
What magnitude was the Gorkha earthquake and its aftershocks?
7.8Mw, 51 aftershocks equal to or greater than 5Mw, 5 above 6Mw and one 7.3Mw
What were two hazards caused by the Gorkha earthquake?
- Avalanches including on Everest
- Many landslides caused
How many injuries and fatalities were there in Nepal due to the Gorkha earthquake?
22,000 injured, 8,800 fatalities
How many were killed in countries other than Nepal due to the Gorkha earthquake?
160 including 20 on Everest
How many people were displaced due to the Gorkha earthquake?
2.8 million from the Kathmandu Valley with 473,000 houses destroyed
How many people were in need of food aid after the Gorkha earthquake?
1 million
What was one of the most disturbing social impacts of the Gorkha earthquake?
An increase in the trafficking of women and girls from poor families to South Asian brothels
Which group was most impacted by the Gorkha earthquake and why?
The lower-caste Tibeto-Burman as they often live on the higher slopes in the Himalayas, therefore the landslides made receiving aid near impossible
How did social norms disadvantage women receiving aid?
Men controlled the aid so single women were discriminated against
Why is it difficult to ascertain the economic impact of the Gorkha earthquake?
A lack of reliable data, partly due to the country’s poverty, makes it difficult to assess the impact on the economy