This is my geophone recording of the Mw7,1 earthquake in California. I don’t have any comments on this activity since I don’t know anything about the tectonic settings in California and how the set-up is regarding fault lines and tectonics in this area. I did only record the surface waves clearly and that is unusual given the distance from the source of the earthquake (6756 km).
The surface waves are strongest on North-South recording. I did not record the Mw6.5 earthquake on the 4th of July.
Due to errors I discovered I have corrected this article and the images used.