aEarthquakes usually occur where tectonic plates meet. About 30 of these plates cover the Earth. They are several miles thick and huge in area—most of the Pacific Ocean sits on just one plate.[translate]
ayou. are. cow 您。 是。 母牛 [translate] aJapan sees a lot of seismic activity because it sits in an area where one tectonic plate—a shard of the earth’s crust—slides under another. At certain points, the two plates get stuck and strain builds up. When the strain overcomes the ...