Though I imagine it's unlikely there is any significant correlation because daily and annual temperature variation really only impact a fairly shallow layer of the crust, I wondered whether the actual data backs that up. I could envision a few unlikely causes, such as the expansion\contraction, rainfall amounts, or crazy things like the little differences in earth-sun distance. So what say you?
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1$\begingroup$ newscientist.com/article/… suggests such a trend occurs (in the month following the vernal and autumnal equinox). If you want to do your own study, emsc-csem.org would be an excellent resource (if you actually do this, feel free to contact me for help, this sounds vaguely interesting). $\endgroup$– user967Nov 11, 2016 at 4:11
1 Answer
There is a slight tendency for earthquakes in coastal areas to coincide with higher gravitational attraction. In one study in Greece, earthquakes were 15% more likely to occur when the sun's gravitational pull was at a maximum. In general though, seismic-tidal correlations are very weak (but not zero).
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3$\begingroup$ Do you happen to know of\have links to the study? $\endgroup$ Nov 11, 2016 at 4:21