A significant earthquake shook the Santa Cruz area of California in the early hours of Thursday, April 2, 2026. It jolted residents from their sleep and sent tremors across a crowded part of the San Francisco Bay Area. The quake was initially reported at a magnitude of 5.0 by the United States Geological Survey. It hit at 1:41 am local time at a shallow depth of 5.6 miles, about 11 miles northwest of Santa Cruz. Seismologists later revised these figures, lowering the magnitude to 5.0 and the depth to 6.7 miles, with the epicenter adjusted slightly to the northwest near Brookdale.
The shallow depth of the quake made its impact stronger. Shallow earthquakes release more energy to the surface, so residents felt more intense shaking than they would from a deeper quake of similar size. Moderate shaking was reported in Brookdale, which is just one mile from the epicenter. Light shaking was felt across a wide area that included Los Gatos, Santa Cruz, Cupertino, Sunnyvale, Santa Clara, Mountain View, and San Jose, home to nearly one million people. Weak shaking may have been felt as far away as San Francisco, around 49 miles from the epicenter.
This earthquake was the strongest to hit this region of California in over three years, with the last similar event being a magnitude 5.0 quake on October 25, 2022, located 12 miles east of San Jose. The Santa Cruz region is in one of California’s most earthquake-prone zones, with most residents living within 15 miles of a capable fault. The area is often affected by the San Andreas Fault, which caused the destructive 1989 Loma Prieta earthquake. No casualties or major structural damage have been reported so far. Aftershocks are expected in the coming days near the fault zone.
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