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It is strange for Virginia, but it is not strange for us to see something that we weren't anticipating. We've had a large earthquake, but the chances of having another one are pretty small. It is not going to increase the seismicity of the region. Chances are this is an isolated event and you probably won't see it again in future.
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Please enter email address to continue. Please enter valid email address to continue. Chrome Safari Continue. Its intensity stayed high over hundreds of kilometers. Compare those numbers with yesterday's Colorado quake.
I should note, though, that depth doesn't fully explain these numbers. The Colorado quake was even shallower than the Virginia one, which means that some other geological factors account for the long-distance effect.
That's probably because East Coast crust is " older and colder ," which makes it a more efficient transmitter of seismic energy. Of course, these are still just guesses. Every earthquake is different in precisely how it manifests.
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