Interesting rebuttal to the previous post about the theory that tidal forces affect underwater earthquake eruptions.
Guest Post by Willis Eschenbach
Inspired by the paper by the charmingly-named
Anna Maya Tolstoy discussed here on WUWT, I decided to see if tidal forces affect the timing of earthquakes and volcanoes. Dr. Tolstoy’s hypothesis is that tidal forces affect the timing of the subterranean eruptions … but she has only nine “events” (either eruptions or lava flows) to test her theory. On that thread I said I thought her hypothesis was wrong, but I hadn’t looked at the data.
I figured that IF, and it’s a big if, tidal forces are affecting volcanoes, they’d also affect earthquakes. So I decided to start by seeing if there is a relationship between the tidal forces and earthquakes by looking at as many earthquakes as I could find.
For the calculation of the tidal forces, I started by going to the marvelous JPL Horizons ephemeris. I set the variables as…
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