Tectonics
Tectonics
Can we prepare for volcanic
eruptions?
Tectonics
Can we predict if volcanoes
are going to happen?
Tectonics
Can we predict if volcanoes
are going to happen?
Other types of remote sensing from satellites can also indicate
earth movements.
Global positioning satellites (GPS) can be used to sense minute
changes in the position of the land near a fault or a volcano.
Laser reflectors, tilt and creep meters record actual movements in
the Earth’s crust.
Heat and gas emission sensors detect changes in the magma beneath
a volcano as it rises before an eruption.
Seismometers measure how and when the ground shakes. These
patterns can predict earthquakes and may indicate that a volcanic
eruption is likely.
Tectonics
Why live in an area of
volcanic activity?
MINERALS
The soil is fertile and lots of food can be grown.
FARMING
The heat from the earth provides geothermal
power.
ENERGY
Many volcanoes are in areas with outstanding
scenery.
TOURISM
Pumice, a volcanic rock, is useful resource,
especially for beauty products.
Tectonics
Why live in an area
of volcanic activity?
The vegetation changes as you
go up the mountain. Above
s__ level, the f_____ has
been cleared near the
v______. Above __ metres,
there is dense forest. A
footpath winds its way up the
V______. Above __ metres, the trees cannot grow and
there is g____. The village people work in the cleared
forest as f______, and cut timber. There are also j___ in
tourism.
Tectonics
The volcano
provides cheap,
clean, geothermal
energy.
A belief in God.
The idea that it is
fate.
Lack of knowledge
about
the hazard.
To finish…
Volcanic rock weathers
to
give very fertile soil.
WHY
LIVE
THERE?
Some people have no
option about where they
live or are too poor to
move.
An attitude of ‘it
won’t happen to
me’.
Tourists are
attracted to
volcanic areas.
This provides jobs in
shops, providing
accommodation and as
tour guides.
Tectonics
Putting it into context