Why do people live in tectonic
areas
1. Why do people live near volcanoes?
2. What can be done to reduce the
damage from a volcanic eruption?
What is this device? How does it help
manage the impact of an earthquake
• Koso - The California Valve
These valves are earthquakesensitive gas shut-off valves.
They are intended to close in
the event of an earthquake to
prevent gas flow into a
structure where earthquake
damage may have occurred.
This will greatly reduce
potential risk of explosion or
fire due to loss of gas line
integrity or uncontrolled flow
of gas after a major
earthquake.
What is this product? How does it help
manage the impact of an earthquake
How else do they prepare the
population?
http://www.geographyalltheway.com/in/gcseplatetectonics/igcse_earthquakes_manage.htm
An Earthquake Proof Building
• The Transamerica
Pyramid in San
Francisco, built to
withstand
earthquakes, swayed
more than 1 foot but
was not damaged in
the 1989 Loma Prieta,
California, earthquake.
• It is also built on very
solid ground that is
less likely to fracture
during an earthquake.
California has an attractive
environment
Explain how the effects of
an earthquake can be
managed (4)
For an area prone top
earthquakes that you
have studied explain
why people choose to
live there (6)
Why do people live in volcanic areas?
This lava is weathered
(broken down) to form
a fertile soil,
Can you think of any other reasons?
Tourists are attracted to
areas of volcanic activity.
Geothermal energy (heat
from the earth) can be
produced in many
volcanic areas.
Prediction of Volcanoes
After the eruption….
Examples of questions
Outline why people
continue to live on
volcanic islands (4)
• For and area you have
studied that is prone to
volcanoes explain why
people continue to live
there (6)