Its because of the amplitude shown on a seismograph according to the Richter scale.
Tsunamis do not have epicentres. Earthquakes do. Sometimes, as in the case of Japan, earthquakes cause tsunamis.
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they can be created by earthquakes and erosion off of cliffs. they can be destroyed by erosion, earthquakes, and mining
Tsunami (big wave in Japanese) are set off by a sudden and large shift of volume in a water body. Landslides have triggered tsunami i Norwegian fjords, usually though underwater earthquakes are the cause.
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Stars use names based off of Greek mythology such as Ursa Major which means Big Bear. The common name for this constellation is the Big Dipper.
the booger jumped off the roof
There are a number of different angles and distances. The angles and distances are particular to the subjects that they are based off of.
Its based off how many lines there are inbetween the two larger #s.
Most earthquakes are too small to be detected, literally hundreds probably happened today. But if we're going off big earthquakes, 1. Japan 2. Haiti 3. Chile 4. Loma Prieta 5. Xiaoxin earthquakeearthquake.usgs.gov/earthquakes/.../Quakes/quakes_big.
The ground swept off our feet like an earthquake
It was based off of the legend of zelda.