Japan goes for the foreshock possibility
Summary:
Japan is going for the foreshock thing I mentioned yesterday. All big M9 earthquakes have an M7 foreshock, but M7 earthquakes are a dime a dozen there. Really, the odds that an M7 means anything are close to the odds of an M9 happening anyway, anywhere around Japan.The really sharp and clean subduction zones are a wet old bathtub. The fault is smooth and wet and regularly
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