A groundbreaking study reveals that a massive earthquake in the Pacific Northwest could trigger a simultaneous quake along the San Andreas Fault in California, raising alarms about disaster preparedness along the entire West Coast.
A magnitude 4.1 earthquake rattled Malibu, California, causing noticeable shaking across the West San Fernando Valley and beyond. Aftershocks followed shortly after, with reports of tremors felt as far south as Huntington Beach.