71957
Disaster Hotspot
Case Study -
California
- Disaster hotspot is an places at
risk from 2 or more hazards
- Earthquakes
- The San Andreas fault
line runs the length of
California which is a
conservative plate
boundary
- Occur when
pressure between the
plates build up and
then suddenly
released and jerk past
each other
- California has 2 or
3 earthquakes that
can damage
buildings each year
- Chance of a 7.0
earthquake to hit San
Franciso bay by 2025
- The San Andreas fault
line runs the length of
California which is a
conservative plate
boundary
- Droughts
- Caused by anticyclones.
Dry sinking air means no
rain
- Also caused by La Nina
events which means less
evaporation so there's
less precipitaion
- Increased wind
blowing
westward from
desert areas
- California suffers from
wildfires during droughts which
spread quickly over wide
areas
- 2007 wildfires killed 22
people and destroyed
1300 homes
- Caused by anticyclones.
Dry sinking air means no
rain
- Tsunami
- Series of large
waves in a coastal
area
- Caused by
earthquakes on the
sea bed
- Earthquake
under the pacific
ocean causes a
tsunami in
California
- Series of large
waves in a coastal
area
- Landslides
- Occur on
unstable steep
slopes
- Caused by
earthquakes
- Risk is high in
California
because of
building on and
around steep
slopes
- Occur on
unstable steep
slopes
- Volcanoes
- Hasn't been one in
California since
1915
- Volcanoes being monitored
- Hasn't been one in
California since
1915
- Parts of California
are vulnerable
- 70% of
California live
with in 50 km
of the fault
line
- There are
buildings on
unstable land
which causes
increased risk of
landslides
- 20% of residents live
below the poverty
line
- Big economy so
huge economic loss
when a disaster
happens
- 70% of
California live
with in 50 km
of the fault
line
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