Earthquake - a sudden and violent shaking of the ground, sometimes causing great
destruction, as a result of movements within the earth's crust or volcanic
action.
destruction, as a result of movements within the earth's crust or volcanic
action.
Focus - The epicenter is directly above the earthquake's focus (hypocenter). In
the case of earthquakes, the epicenter is directly above the point where the
fault begins to rupture, and in most cases, it is the area of greatest damage.
the case of earthquakes, the epicenter is directly above the point where the
fault begins to rupture, and in most cases, it is the area of greatest damage.
Elastic Rebound - The elastic rebound theory is an explanation for how energy is spread during earthquakes. As rocks on opposite sides of a fault are subjected to force and shift, they
accumulate energy and slowly deform until their internal strength is exceeded
accumulate energy and slowly deform until their internal strength is exceeded
Epicenter - the point on the earth's surface vertically above the focus of an
earthquake. the central point of something, typically a difficult or unpleasant
situation
earthquake. the central point of something, typically a difficult or unpleasant
situation
Seismolgy - the branch of science concerned with earthquakes and related
phenomena
phenomena
Seisogram - an instrument that measures and records details of earthquakes, such as
force and duration.
force and duration.
Magnitude - the great size or extent how something is.
Intensity - The Mercalli intensity scale is a seismic scale used for measuring the
intensity of an earthquake. It measures the effects of an
earthquake, and is distinct from the moment magnitude usually reported
for an earthquake (sometimes misreported as the Richter magnitude), which
is a measure of the energy released.
intensity of an earthquake. It measures the effects of an
earthquake, and is distinct from the moment magnitude usually reported
for an earthquake (sometimes misreported as the Richter magnitude), which
is a measure of the energy released.
Tsunami -long high sea wave caused by an earthquake, submarine landslide, or
other disturbance.
other disturbance.
Seismic Map - of or relating to of or relating to
earthquakes or other vibrations of the earth and its crust.
relating to or denoting
geological surveying methods involving vibrations produced artificially by
explosion of enormous proportions or effect.
earthquakes or other vibrations of the earth and its crust.
relating to or denoting
geological surveying methods involving vibrations produced artificially by
explosion of enormous proportions or effect.