Regulars here will know that I put up a Quake Report every so often. (Usually when something enough bigger than a “6” happens to get my interest going.) I also frequently mention that there is a historical correlation between more earthquakes, more volcanoes, and Solar Grand Minima. All generally held to be ‘coincidental’ or “anecdotal”…
But now we have a paper published:
Molchanov, O. 2010. About climate-seismicity coupling from correlation analysis. Natural Hazards and Earth System Sciences 10: 299-304.
There is a summary evaluation of it at:
O. Molchanov of the Russian Academy of Sciences’ Institute of the Physics of the Earth — which is headquartered in Moscow, Russia — makes a case for the hypothesis that, at least partially, global climate changes and corresponding activity indices such as the ENSO phenomenon are induced by similar variations in seismicity.
This was done by (1) calculating the cumulative annual seismic energy released by large earthquake events originating from depths of 0 to 38 km, based on data archived by the U.S. Geological Survey for the 35-year time interval of 1973-2008 for various earthquake activity zones spread across the tropical and western Pacific — including the Chilean subduction zone, the Tonga-Kermadec zone, the Sunda, Philippine, Solomon Sea zones and the Mariana, Japan and Kuril-Kamchatka zones — and (2) comparing the then-evident periodicity of seismic energy production with that of sea surface temperature oscillations that occurred over the same 35-year period within the Niño zones 1+2 (0-10°S, 90-80°W), 3 (5°N-5°S, 150-90°W), and 4 (5°N-5°S, 160°E-150°W).
And what did they find?
In concluding his paper, Molchanov states that “trends in the climate and seismic variations are similar to each other,” and that “it is rather probable that the climate ENSO effect is at least partially induced by seismicity with a time lag of about 1.5 years,” leaving it up to others to further study and debate the issue.
Full article here:
Where no one place stands out, but there is just what looks like a lot of smaller to medium stuff all over the place.