EARTHQUAKE : South Napa, California Flashcards
1
Q
Date?
A
2014
2
Q
Epicentre?
A
11km deep
3
Q
Aftershocks?
A
12
4
Q
Magnitude?
MMS
A
6.0 MMS
5
Q
Intensity?
Mercalli scale
A
VIII (8) on the Mercalli scale
6
Q
Primary hazards?
A
Ground shaking
7
Q
Secondary hazards?
A
- six major fires
- building collapse
8
Q
Primary impacts?
A
- broken water main
- wineries damaged
9
Q
Secondary impacts?
A
Damaged churches
10
Q
Economic impacts?
cost and buildings damaged
A
- 613 buildings damaged
- $1 billion cost
11
Q
Social impacts?
dead and injured
A
- 1 dead
- 200 injured
12
Q
Environmental impacts?
A
temporary increase of water flow in local streams
13
Q
Political impacts?
A
Obama declared major disaster
14
Q
Risk?
A
West Napa Fault line
15
Q
Vulnerability?
A
- poor hazard perception (fatalism)
- retrofitting and aseismic buildings
16
Q
Short-term responses?
A
- firefighting
– hindered by damaged water main
17
Q
Long-term management strategies?
A
- Shake Alert warning system granted $5 million to develop for entire West Coast
- 144 mains repaired
