The Cascadia Earthquake Zone is big enough to compete with SanAndreas (it's been called the most dangerous fault in America), but it's much lesser known than its California cousin.
Prior to 1965 geologists assumed that the two giant rock plates meeting at theSanAndreasFault generate heat through friction as they grind past each otherd.
1965年以前,地质学家认为,两个巨大的岩石板块在圣安德烈亚斯断层上相遇,通过摩擦产生热量。
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California has spent years preparing for "The Big One"—the inevitable earthquake that will undoubtedly unleash all kinds of havoc along the famous SanAndreasfault.