Friday, July 26, 2019

Update on the Latest Earthquakes in the Ridgecrest Area


  There was a M4.7 earthquake at the beginning of UTC doy 207 that one might consider unusual since it was about 3 standard deviations from the most likely number of earthquake and the count for the day is not complete. It is difficult to characterize this since the some other source of deviation in the magnitudes other than random error.


The peak magnitude of this earthquake also appears to be unusual since it is greater than 2 standard deviations from the most likely magnitudes.


It is also within 2 standard deviations of the of the most likely peak magnitudes of the stress index correlation curve.


It looks like the faults in the area are having a little trouble deciding which way they want to go. It should be noted that one might be able to improve on the stress index to get better agreement with observations. There still seems to be problems with it and its interpretation.

note: I seem to have gotten the doy of year wrong. What was previously posted was the number of elapsed days since the beginning of 2019. I've now corrected to the usual doy.

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