Two homes after the magnitude-6.4 earthquake in Ferndale, Calif., in 2022. One home is not retrofitted (left) the other home is retrofitted (right). Credit: California Earthquake Authority

Two homes after the magnitude-6.4 earthquake in Ferndale, Calif., in 2022. One home is not retrofitted (left) the other home is retrofitted (right). Credit: California Earthquake Authority

Two homes after the magnitude-6.4 earthquake in Ferndale, Calif., in 2022. One home is not retrofitted (left) the other home is retrofitted (right). Credit: California Earthquake Authority

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