On Sunday, Northern California’s coast near Eureka experienced a magnitude 5.5 earthquake, as reported by the United States Geological Survey (USGS). The seismic event took place at approximately 11:44 a.m., emanating from a depth of 10.0 km west of Petrolia, located in Humboldt County. USGS confirmed that there was no tsunami risk associated with this earthquake.
This region is not unfamiliar with significant seismic activity. A more forceful 6.4 magnitude earthquake struck the same area in Humboldt County, Northern California, in December 2022. The devastating event led to the loss of two lives and injured around a dozen people while causing extensive property damage.
Despite the recurring seismic activity, the recent 5.5 earthquake has not reported any major damage or casualties so far. This lack of severe consequences is a relief given the region’s history with destructive earthquakes. The residents remain vigilant, prepared for any subsequent seismic events that this geologically active region may present.
The North Coast has a history of earthquakes and tsunamis in the area due to its proximity of the active geological area of the nearby Mendocino Triple Junction, which is the confluence of the San Andreas Fault and Cascadia Subduction Zone. In 1964, Crescent City had a tsunami that killed 12 people and caused $15 million in damage.