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Add to CalendarEERI Webinar Series: Revised Alquist-Priolo Earthquake Fault Zones for the City and County of San Diego04/06/21 12:00PM04/06/21 2:00PMLos_AngelesThis webinar, organized by the EERI San Diego Chapter, will provide background and further information on the preliminary review maps of proposed new and revised Alquist-Priolo Earthquake Fault Zones to the City and County of San Diego that were released by the California Geological Survey (CGS) on February 18, 2021EERImaggie@eeri.org
Session and Speakers
December 9, 2021 12:00pm - 1:00pm PT
Quick Quake Briefing: California M6.0 Antelope Valley Earthquake of July 8, 2021
Earthquake struck close to California Highway 395 (Source: Shakemap)
Boulders on California Highway 395 (Source: ktvu)
The EERI Northern California Regional Chapter and the EERI Learning from Earthquakes Program are co-hosting a FREE webinar on the M6.0 earthquake that struck Northern California on July 8, 2021.
The earthquake was the largest to strike California since the M7.1 Ridgecrest earthquake in July of 2019. It was centered in Antelope Valley, California, close to Highway 395 about half-way between Lake Tahoe and Mono Lake. Strong shaking occurred in the epicentral area (MMI = VI) due the shallow source depth of 5 miles. Numerous rockslides caused the temporary closure of about 40 miles of California Highway 395. The earthquake was also felt as far away as the San Francisco Bay Area about 200 miles to the west (MMI = III). Fortunately, the built environment was mostly unscathed, thanks to the remote location. The webinar will be hosted by Northern California Chapter President Volkan Sevilgen and moderated by Donald Wells, Principal Engineering Geologist at Fugro.
The Quick Quake Briefing will feature four speakers.
Brian Olson, Engineering Geologist, California Geological Survey (CGS). He will present an introduction to the earthquake, including a summary of the tectonic setting and the status of CGS mapping of active faults in the region
Austin Elliott, Research Geologist, United States Geological Survey (USGS). He will present a summary of seismological and strong ground motion observations from the earthquake, including Did You Feel It? (DYFI) community shaking reports, strong motion recordings, ShakeAlert early warning, and aftershock seismicity.
Richard Koehler, Associate Professor, Nevada Bureau of Mines and Geology, University of Nevada, Reno (UNR). He will present a summary of the paleoseismology of the Antelope Valley fault system, the geological reconnaissance performed to assess the surface effects of the earthquake, and the operation of the clearinghouse web site during the response.
Richard Heninger, Senior Bridge Engineer, California Department of Transportation (Caltrans). He is part of the Post Earthquake Investigative Team (PEQIT) that inspects bridges to survey damage that might affect design practice. He will report on how PEQIT operated and the findings from the earthquake.
The webinar will include time for participants to ask questions of the speakers.
Volkan Sevilgen
Chief Technology Officer and Co-founder
Temblor
Brian Olson
Engineering Geologist
California Geological Survey
Austin Elliott
Research Geologist
United States Geological Survey
Richard Koehler
Associate Professor
Nevada Bureau of Mines and Geology, University of Nevada, Reno (UNR).
Richard Heninger
Senior Bridge Engineer
California Department of Transportation
Donald Wells
Principal Engineering Geologist
Fugro
round
About EERI’s Webinar Series
EERI’s professional development webinar series covers a broad range of topics for the community of earthquake risk reduction professionals. You will hear about the latest impacts and lessons from recent earthquakes, learn about emerging research from Earthquake Spectra, and hear from leading experts on complex technical topics.
