Two Earthquakes Shake the North Coast, Prompting Tsunami Concerns


Eureka, Ca. (KIEM) — Things were a little shaky for some Humboldt County residents Sunday night after two earthquakes struck roughly 50 miles off the coast of Petrolia.

According to the United States Geological Survey, the first was a 5.8 magnitude quake that hit just before 8 pm. The second, a 4.9 quake, was reported just after 11:30. Both were along the Mendocino fault, one of the most active faults in California.

A concern following those earthquakes was whether or not there was a possibility of it causing a tsunami. The national weather service says it’s important to have an evacuation plan in place. Right now, no tsunami threat alerts have been issued, but that doesn’t mean it’s not possible in the future.

At the end of the day, it’s all about being informed and knowing what to do if that situation arises down the road.

According to a professor and chair from the Humboldt State Geology Department, Mark Hemphill-Haley, there is the possibility of another larger earthquake because of the active fault we sit on, but right now, he says that is unlikely.