California Geological Survey Tsunami Event Response Program: Tonga Tsunami 2022
The California Geological Survey (CGS) operates a statewide natural hazard event response program that can be activated during and following these events. Activations may include opening the California Earthquake Clearinghouse and/or the deployment of field teams to gather observations of perishable features. Following the eruption of the Hunga Tonga-Hunga Ha’apai volcano in the Kingdom of Tonga, the National Tsunami Warning Center released a Tsunami Advisory for California. Shortly afterwards, the CGS deployed field teams to document the tsunami as it arrived and sent post-tsunami field teams to evaluate the impact of the tsunami. These teams were composed of staff from the CGS, the California Governor’s Office of Emergency Services, the U.S. Geological Survey, Cal Poly Humboldt and the University of Southern California. Teams collected physical observations of the tsunami impact using ESRI Field Maps and gathered interviews using ESRI Survey123.
Teams made co-tsunami observations in San Francisco Bay, Half Moon Bay and the Los Angeles/Long Beach harbors. Phase I of the post-tsunami response was prioritized based on the potential for significant impact. Tide gages with the largest tsunami total water elevations were Crescent City 3m, Arena Cove 2.94m, & Port San Luis 2.94m (MLLW), so teams were deployed to these areas including Santa Cruz where damage was reported. For Phase II, teams were deployed to places where we learned more about the tsunami impact during Phase I period: Ventura, Marin, Sonoma, Mendocino, & San Diego counties. Noyo Harbor has no tide gage, so security video footage was combined with a level survey between a U.S. Army Corps of Engineers survey benchmark and a staff plate mounted to the pier to show a maximum water surface elevation of 2.66±0.003m (MLLW). Details about total water levels, observable damage, response protocols and lessons learned will be summarized and posted on the CGS website tsunami.ca.gov/tonga.
Session: The 15 January 2022 Tonga Eruption and Tsunami [Poster]
Type: Poster
Room: Evergreen Ballroom
Date: 4/21/2022
Presentation Time: 08:00 AM Pacific
Presenting Author: Jason R. Patton
Student Presenter: No
Additional Authors
Jason Patton Presenting Author Corresponding Author jason.patton@humboldt.edu California Geological Survey |
Rick Wilson rick.wilson@conservation.ca.gov California Geological Survey |
Jacqueline Bott jaqueline.bott@conservation.ca.gov California Geological Survey |
Nicholas Graehl nicholas.graehl@conservation.ca.gov California Geological Survey |
Cynthia Pridmore cindy.pridmore@conservation.ca.gov California Geological Survey |
Brian Olson brian.olson@conservation.ca.gov California Geological Survey |
Francesca Valencia francesca.valencia@conservation.ca.gov California Geological Survey |
Michael DeFrisco michael.defrisco@conservation.ca.gov California Geological Survey |
Jim Falls jim.falls@conservation.ca.gov California Geological Survey |
Kate Thomas kate.thomas@conservation.ca.gov California Geological Survey, Sacramento, California, United States |
Tyler Ladinsky tyler.ladinsky@conservation.ca.gov California Geological Survey, Half Moon Bay, California, United States |
Gordon Seitz gordon.seitz@conservation.ca.gov California Geological Survey, San Mateo, California, United States |
Tim McCrink tim.mccrink@conservation.ca.gov California Geological Survey, Sacramento, California, United States |
Steve Bohlen steve.bohlen@conservation.ca.gov California Geological Survey, Sacramento, California, United States |
Todd Becker todd.becker@caloes.ca.gov California Governor’s Office of Emergency Services, Eureka, California, United States |
Matthew Palmer matthew.palmer@caloes.ca.gov California Governor’s Office of Emergency Services, Atascadero, California, United States |
Yvette LaDuke yvette.laduke@caloes.ca.gov California Governor’s Office of Emergency Services, Santa Clarita, California, United States |
Amanda Admire amanda.admire@humboldt.edu Humboldt State University, Arcata, California, United States |
Lori A Dengler lori.dengler@humboldt.edu Humboldt State University, Arcata, California, United States |
Patrick Lynett plynett@usc.edu University of Southern California, Los Angeles, California, United States |
Bruce Jaffe bjaffe@usgs.gov U.S. Geological Survey, Santa Cruz, California, United States |
SeanPaul La Selle slaselle@usgs.gov U.S. Geological Survey, Santa Cruz, California, United States |
Brandon Nasr bnasr@contractor.usgs.gov U.S. Geological Survey, Santa Cruz, California, United States |
Andrew Ritchie aritchie@usgs.gov U.S. Geological Survey, Santa Cruz, California, United States |
Alex Snyder agsnyder@usgs.gov U.S. Geological Survey, Santa Cruz, California, United States |
California Geological Survey Tsunami Event Response Program: Tonga Tsunami 2022
Category
The 15 January 2022 Tonga Eruption and Tsunami
Description