6. Introduction
• In my slide show I will tell you...
• What you should have in your survival kit.
• What causes an earthquake.
• And how people measure earthquakes.
9. What Causes An
Earthquake?
• There are two main causes of an earthquake.
Firstly, they can be linked to a volcanic eruption, they are actually very common in areas where there
are volcanos in action.
Secondly, they can be triggered by tectonic activity associated with plate margins and faults. The
majority of earthquakes world wide are this type.
12. Survival Kits.
• In your survival kit you will need...
Water and caned food that will keep you alive for 3 days, or until help comes.
Medical supplies, [band aids ect.]
Torches.
A radio.
13. Survival Kits.
• In your survival kit you will need...
Water and caned food that will keep you alive for 3 days, or until help comes.
Medical supplies, [band aids ect.]
Torches.
A radio.
14. Survival Kits.
• In your survival kit you will need...
Water and caned food that will keep you alive for 3 days, or until help comes.
Medical supplies, [band aids ect.]
Torches.
A radio.
15.
16. • The Richter magnitude is calculated from
the amplitude of the largest seismic wave
recorded for the earthquake. A magnitude
8 earthquake releases as much energy as
detonating 6 million tons of tnt.
Earthquakes are recorded by
instruments called seismograms. The
recording they make is called a
seismogram. The seismograph has
a base that sets firmly in the ground,
and a heavy weight that hangs free.
17. How to measure an
•
earthquake?
The Richter magnitude is calculated from
the amplitude of the largest seismic wave
recorded for the earthquake. A magnitude
8 earthquake releases as much energy as
detonating 6 million tons of tnt.
Earthquakes are recorded by
instruments called seismograms. The
recording they make is called a
seismogram. The seismograph has
a base that sets firmly in the ground,
and a heavy weight that hangs free.
18. How to measure an
•
earthquake?
The Richter magnitude is calculated from
the amplitude of the largest seismic wave
recorded for the earthquake. A magnitude
8 earthquake releases as much energy as
detonating 6 million tons of tnt.
Earthquakes are recorded by
instruments called seismograms. The
recording they make is called a
seismogram. The seismograph has
a base that sets firmly in the ground,
and a heavy weight that hangs free.
19. Bibliography
• Websites Books
• The science of earthquakes.
• http://earthquake.usgs.gov/learn/kids/eqscience.php
www.geo.mtu.edu/UPSeis/intensity.html
www.geography-site.co.uk
