Earthquake Definition
ûrthkwāk
earthquakes
noun
earthquakes
A shaking or trembling of the crust of the earth, caused by underground volcanic forces or by breaking and shifting of rock beneath the surface.
Webster's New World
A seismometer is used to record and measure the strength of an earthquake.
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The Mercalli scale is used to measure the earthquake. Anything seven or above is considered extremely dangerous.
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Earthquakes usually occur along fault lines, or cracks that occur within the Earth’s crust.
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Japan, New Zealand, Alaska are all located on one side of a horseshoe-shaped fault line called the "Ring of Fire" that circles the Pacific Ocean and is responsible for frequent earthquakes and frequently erupting volcanos.
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Synonyms:
- quake
- seism
- temblor
- upheaval
- seismology
- movement
- foreshock
- aftershock
- trembler
- shock
- earth-tremor
- tremor
- earthshock
- points on the Richter scale; secondary tremor
- /etc
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Other Word Forms of Earthquake
Noun
Singular:
earthquake
Plural:
earthquakesRelated Articles
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