Earthquake Hazards
Earthquake Hazards
Earthquake Hazards
Earthquake Hazards
Earthquake a weak to violent
shaking of the ground produced by
the sudden movement of rock
materials below the earth’s surface.
Tectonic
earthquakes produced by sudden
movement along faults and plate
boundaries
Volcanic
earthquakes produced by movement
of magma beneath volcanoes
How Do We Measure
Earthquakes?
Magnitude and Intensity
Magnitude Intensity
A measure of the total energy released at Perceived strength of an earthquake
the earthquake’s point of origin (below based on relative effect to people and
earth’s surface) based on information structures (on the earth’s surface);
derived from a seismograph generally higher near the epicenter
Earthquake Hazards
AN EARTHQUAKE
BEFORE
THE KEY TO EFFECTIVE DISASTER
PREVENTION IS PLANNING