Valerie Starkey was driving through Northern California to visit relatives when she suddenly felt shaking and feared her car had broken down, only to realize later that it was an earthquake so powerful that it triggered a tsunami warning for hundreds of miles of the U.S. West Coast.
The epicenter of Thursday's 7.0 magnitude shaker occurred in California’s so-called “earthquake country” because it’s where three tectonic plates meet. The temblor was the most powerful to rattle the state since a 7.1-magnitude quake hit Ridgecrest in 2019.
