Earthquakes Flashcards
At what kind of plate boundary did the Sichuan earthquake occur?
Collision; where the Indian and Eurasian plates meet
When did the Sichuan earthquake occur?
12th May 2008
What was the effect of the Sichuan earthquake on the la d around it?
Moved 9m north
What magnitude was the Sichuan earthquake?
7.9
During the Sichuan earthquake, shockwaves could be felt in Beijing and Shanghai. How far away are these cities from the epicentre?
1500km and 1700km
Why was it difficult to get relief to Sichuan?
Routes blocked by landslides caused by the earthquake
In terms of GDP, Sichuan ranks ….. out of 31 Chinese provinces.
25th
Why did so many buildings in Sichuan collapse?
They were poorly built, despite building regulations; schools were particularly bad
How ,may classrooms collapsed in Sichuan?
7000, killing 19,000 children
How many people died in the Sichuan earthquake?
Around 90,000
How many people were evacuated from Sichuan?
15 million
How many people in Sichuan were displaced?
5 million
How many buildings in Sichuan were destroyed?
5 million, 21 million were damaged
What were the secondary impacts of the Sichuan earthquake?
700 people killed in landslide in Qingchuan, fracturing of nearly 2,500 dams, threat of flooding for 700,000 people
How might humans have caused the Sichuan earthquake?
The Zipingpu Dam, holding 315 million tonnes of water, was completed two years before the earthquake and is located 5km away from the epicentre
How many lakes were created by landslides in Sichuan?
34
How had China tried to modify the vulnerability of people in earthquake prone areas?
Provinces were identified as at different levels of risk, then each level had building regulations; any construction after 1976 in Sichuan should have been reinforced with steel
How many buildings in Japan were destroyed by the Sendai earthquake and tsunami?
112,000
How many people died or are missing after the Sendai earthquake and tsunami?
20,000
Why were people in towns such as Minami Sanriku vulnerable to the tsunami?
Their houses don’t have foundations, so they were swept away
Which buildings of importance were destroyed in the tsunami at Minami Sanriku?
The bottom four floors of the hospital were wiped out, the tsunami warning tower was destroyed causing the death of a woman who stayed to warn everyone over intercom