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Have questions? Contact us at rctwg@humboldt.edu
In the news
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May 10, 2025, Not My Fault, How a great Cascadia earthquake might remake the Pacific Northwest Coastline
Eureka Times-Standard, (Download the file) -
May 3, 2025, Not My Fault, 1992 highlights co-seismic ups and downs of the land
Eureka Times-Standard, (Download the file) -
April 26, 2025, Not My Fault, The 1992 Cape Mendocino earthquakes, a 33-year perspective
Eureka Times-Standard, (Download the file) -
April 19, 2025, Not My Fault, A hiccup on the San Andreas transform system
Eureka Times-Standard, (Download the file) -
April 12, 2025, Not My Fault, Gary Carver: Farewell to a Humboldt geology icon
Eureka Times-Standard, (Download the file)
New Content
Recent Earthquakes Near the Mendocino Triple Junction
Learn about recent earthquakes near the Mendocino triple junction and the impact they had on the coastal communities.
Tsunami Preparedness Week
Learn what you can do be more prepared for tsunamis on the North Coast, and join us as we practice our tsunami drills.
Special content pages:
Learn more about tsunami preparedness in California: TsunamiZone.org
Know your zone!
Find out if you live in a tsunami zone by exploring our Humboldt County tsunami zone maps.
Natural and Official Warnings
Natural warnings and Official warnings are equally important. Respond to whichever you experience first.
Educational Materials & Graphics
Our educational efforts include the development of regional tsunami brochures and a preparedness magazine called Living on Shaky Ground.
