Climate extremes: Earthquakes

The San Andreas Fault is a break in the Earth's crust that lies underneath California, causing several small earthquakes every year. Most of the earthquakes are not even noticeable, and the last large one happened in 1994. However, a catastrophic earthquake nearly destroyed San Francisco in 1906. Scientists say that it is possible that another massive earthquake may happen in the future, but they predict that they will recognize the warning signs years before it happens. As a precaution against earthquakes, some older buildings in Californian cities are being pulled down, and there is very little new building along the fault line itself.

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