05-12-2015, 09:27 PM
(05-12-2015, 09:04 PM)Island Chris Wrote: ...
I think there is at least a minor influence of Great quakes (and maybe high-end Major quake) at great distances. For example, seismic waves from Denali in Alaska I think is known to have triggered small quakes in the continental USA.
True. I seem to recall places like Yellowstone and/or Mammoth had a noticeable uptick in seismic activity coincident with the passing seismic waves. But these are small effects.
If the passing waves of a large quake triggered a large quake elsewhere, wouldn't it be true that the triggered quake was probably about to go anyway? Camel backs and straw and all that?
Of course, the larger the quake, the larger the possible influence.
sigh... too bad seismology is so young compared to the geology. Can you imagine if we even had 1000 years of data at today's quality? We could probably predict quakes usefully by then.
Brian