The Big One: A Northwest Earthquake Survival Guide – Portland Monthly

The Big One: A Northwest Earthquake Survival Guide
Portland Monthly
Think of Oregon geology as a clock, measuring time in earthquakes—40 major coastal quakes over the last 10,000 years. Tick: a magnitude 8 on the Richter scale. (Bigger than the quake that killed 63 people in the Bay Area in 1989.) Tock: a magnitude 9.

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Source: Earthquake News From Google News

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