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Ferndale M6.4 Earthquake Reconnaissance Briefing Webinar

Date: 02/08/2023

Ferndale M6.4 Earthquake Reconnaissance Briefing Webinar

Thursday, February 9, 2023
11:00 AM-1:00 PM, Pacific Standard Time


The Earthquake Engineering Research Institute's Learning from Earthquakes Program and the California Earthquake Clearinghouse invite you to a FREE reconnaissance briefing webinar on the earthquake that struck Humboldt County, California in December.

At 2:34 AM on December 20, 2022, a M6.4 earthquake struck offshore near Ferndale, California, causing damage to lifelines and structures in Humboldt County. Structures in the nearby communities of Ferndale, Fortuna, and Rio Dell experienced damage including broken windows, collapsed chimneys, and fallen bricks, and a small number of buildings slid off their foundations. Roughly 150 homes were damaged or destroyed in the earthquake. More than 70,000 people lost power, and there was damage to roads and bridges in the area. The ShakeAlert earthquake early warning system was activated, and approximately three million people in northern California and southern Oregon received warnings.

In this multidisciplinary webinar, speakers will provide information on the science, engineering, and emergency response aspects of the earthquake, and discuss the impact on lifelines and critical infrastructure, including electricity, transportation, and healthcare facilities.

Speakers include: 

  • Maggie Ortiz-Millan, Earthquake Engineering Research Institute
  • Cynthia Pridmore, California Geological Survey
  • Jason Patton, California Geological Survey
  • Richard Allen, Berkeley Seismological Laboratory and MyShake
  • Chris Tokas and Hussain Bhatia, California Department of Health Care Access and Information
  • Janiele Maffei, California Earthquake Authority
  • Megan Stanton, Pacific Gas and Electric
  • Bob Tanaka and Richard Heninger, Caltrans Division of Engineering Services