ECA Southern California

Earthquake Country Alliance Southern California (ECA SoCal) is one of three regional alliances that comprise the statewide Earthquake Country Alliance, a public-private-grassroots partnership of leading earthquake professionals, emergency managers, government officials, business and community leaders, and others.

ECA is best known for coordinating the annual Great California ShakeOut earthquake drill and developing multi-sector educational resources.

Funding for ECA activities is provided by FEMA’s Building Science Branch as part of its support for the California Governor’s Office of Emergency Services Earthquake Program.

Among the many partners in ECA SoCal are the Southern California Earthquake Center, U.S. Geological Survey, Caltech, California Earthquake Authority, California Office of Emergency Services, FEMA, California Geological Survey, County of Los Angeles, County of San Bernardino, City of Los Angeles, MySafe:LA, Providence Health Care, and the American Red Cross.

We encourage you to Join the Alliance


ECA SoCal Workshops:

ECA SoCal Fall 2023 Workshop (Online):
Recording and materials now available

Graphic with description of ECA SoCal Fall 2023 Workshop including Northridge 30th graphic
Join us online to debrief this year’s ShakeOut, learn nearby faults and other hazards, hear updates about ECA’s Mini Awards, and plan for the Northridge Earthquake 30th anniversary.

ECA SoCal Spring 2023 Workshop:
Recording and materials available now!

graphic with workshop description and image of a shake map of the 2023 Turkey earthquake.
Learn about the damage and other impacts of the February 2023 earthquakes in Turkey (and implications for Southern California), the latest about Earthquake Early Warning, and plans for the 20th Anniversary of the Earthquake Country Alliance and the 30th Anniversary of the Northridge earthquake.

ECA SoCal Winter 2023 Workshop:
Recording and materials available now!

graphic with workshop description and image of person moving to high ground to get away from a tsunami.
Learn about the impacts and lessons from the 2022 Ferndale earthquake, offshore faults and tsunami hazards of Southern California, and more!

Past Workshops (recent workshops have recordings)


ECA SoCal Coordinating Committee

  • Alan Hanson, Simpson Strong-Tie (retired): Chair
  • Heidi Rosofsky, Global Vision Consortium: Chair
  • Margaret Vinci, Caltech Earthquake Programs: Chair
  • (Open Position) Membership Coordinator
  • (Open Position) Communications Coordinator
  • (Open Position) Regional Workshops Coordinator
  • Marilyn Jimenez, American Red Cross: Media Bureau Co-Coordinator
  • Mimi Teller, American Red Cross: Media Bureau Co-Coordinator
  • Pei Lee, Orange County Sheriff’s Department, EMD: Participation Bureau Coordinator
  • John Hammett: Events Bureau Co-Coordinator (Speakers)
  • Lance Webster: Events Bureau Co-Coordinator (Exhibits)
  • Pauline Louie, U.S. Housing and Urban Development: ShakeOut/Tsunami Week Events Coordinator
  • Gabriela Noriega, Southern California Earthquake Center: Regional Alliance Liaison

We are expanding the Coordinating Committee. If you are interested in volunteering please email for more information.