![]() ![]() Jeff Wise: Could a Sendai-Sized Quake Hit the US? Sendai was a result of something far more dangerous: a so-called subduction zone, a deep-lying discontinuity caused by one plate slowly burying itself under another. Japan: The 'Big One' hit, but not where they thought it would Tremors are common throughout Japan, and this one was near the Japan Trench, where the Pacific plate, the speediest of the earth's major slabs of crust, dives beneath the islands of Japan in what's called a subduction zone. ![]() The fault involved in the Fukushima Dai-ichi tsunami is part of what is known as a subduction zone. This blue line here, that's what we call the subduction zone, so that's kind of where the plates, one lays on top of the other.
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