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Earthquake Thread ~ Always Updated
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Poster Handle
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Simple27 |
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Does anyone know or remember how long a quake is considered an aftershock? I know a few years but I don't remember an official number.
Quoting: WhiteAngel I'm not sure there is an official number/answer. Some of the New Madrid Seismic Zone earthquakes are considered to be aftershocks from the 1811-1812 earthquakes. Sheer stupidity on their part. Correct me if I'm wrong, but in order for recent ones to be 'aftershocks', there could not have been any new plate movement since then right? Like they can see underground and know that it's just delayed slippage from an older quake...more than 200 years later...uh huh. That would throw their whole plate movement theory into the trash bin, as no quake could be considered 'fresh'. Or do I just need to shut up and drink more coffee? (Which I haven't gotten yet btw) Yes, that's basically what they're saying in the study in that link I just posted above. It's a good read imo. Kinda long. But addresses exactly what you're talking about. 
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