PolicyThursday, September 24, 2026ScienceDaily
The “big one” might not come alone: Two major West Coast faults may strike back to back
Recent research indicates that the Cascadia subduction zone and northern San Andreas fault may rupture consecutively, based on evidence from ocean sediments dating back 3,100 years. This finding underscores the need for updated seismic risk assessments and preparedness strategies for communities along the West Coast.
