Magnitude 9.2: The 1964 Great Alaska Earthquake

  "I’m a member of an organization, the Geotechnical Extreme Events Reconnaissance Organization," said U.C. Davis Professor Ross Boulanger, Ph.D. Boulanger recently led a team of researchers in Japan, looking at how the dramatic earthquake […]

The Geotechnical Extreme Events Reconnaissance (GEER) Association published their report last month on the January 7, 2020, Puerto Rico Earthquake. Here is the summary: A seismic sequence located along the southwestern coast of Puerto Rico […]

October 17 was the 18th anniversary of the 6.9 magnitude Loma Prieta earthquake that struck the Bay area.  But a recent story by the Bay Area’s local ABC affiliate, ABC7, chose to focus on another earthquake, a 1868 earthquake of about the same magnitude that occurred on the Hayward Fault. According to the USGS, the Hayward Fault has a return period of about 140-years and  "It’s the most heavily urbanized fault in the U.S. and it’s just waiting to go off…" Next year will be the 140-th anniversary of the last earthquake on the Hayward Fault. At some point it has the potential to be a very bad earthquake there. More after the break. (Photo by sanbeiji)

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