Related topics: japan · tectonic plates · earth · earthquake · tsunami

California quake occurred in very seismically active region

The big earthquake that rocked the far north coast of California on Tuesday originated in an area under the Pacific Ocean where multiple tectonic plates collide, creating the state's most seismically active region.

Strong 6.4-magnitude quake rocks northern Philippines

A 6.4-magnitude earthquake rocked the northern Philippines late Tuesday, the US Geological Service said, sending panicked residents out into the streets and causing substantial damage to a hospital.

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