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Earthquakes
Index
- Earthquake, seaquake and tsunami
- Parts of an earthquake
- Magnitude and intensity of an earthquake
- What is Richter scale?
- How many earthquakes occurs in Spain?
A sudden violent shaking of the ground, typically causing great destruction, as a result of movements within the earth's crust or volcanic action.
Earthquake
Seaquake
Tsunami
A sudden disturbance of the sea caused by a submarine eruption or earthquake.
A long, high sea wave caused by an earthquake or other disturbance.
Parts of an earthquake
FAULT: is a planar fracture or discontinuity in a volume of rock, across which there has been significant displacement as a result of rock-mass movement.
HYPOCENTRE: is the point of origin of an earthquake or a subsurface nuclear explosion.
EPICENTRE: is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates.
SEISMOGRAPH:A seismograph, or seismometer, is an instrument used to detect and record earthquakes.
SEISMOGRAM:A seismogram is a graph output by a seismograph. It is a record of the ground motion at a measuring station as a function of time.
Magnitude and intensity of an earthquake
INTENSITY: The severity of earthquake shaking is assessed using a descriptive scale
MAGNITUDE: Earthquake size is a quantitative measure of the size of the earthquake at its source.
What is Richter scale?
For measuring the strength ("size") of earthquakes refers to the original "magnitude scale" developed by Charles F. Richter and presented in his landmark 1935 paper, and later revised and renamed the Local magnitude scale, denoted as "ML" or "ML".
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