What earthquakes hit the San Francisco Bay Area and Japan on April 26-27, 2026?

San Francisco Bay Area Earthquakes

Two earthquakes rattled the San Francisco Bay Area on Saturday afternoon, April 26, 2026. According to the United States Geological Survey, the first quake measured 3.0 magnitude and struck around 4:40 p.m., with the second measuring 2.7 magnitude following minutes later. Both earthquakes were centered less than 2 miles southwest of the San Francisco Zoo, just off the coast of San Francisco. Weak shaking was reported across San Francisco and San Mateo counties, though no damages were reported in the immediate aftermath.

Japan Earthquakes

Japan was struck by a 6.2-magnitude earthquake in the northern region of Hokkaido on April 26-27, 2026. This quake came approximately one week after a more powerful 7.7-magnitude earthquake had shaken the country. The 6.2-magnitude tremor generated headlines regarding tsunami advisories, though no tsunami warning was ultimately issued for this particular earthquake.

Regional Impact

The San Francisco earthquakes caused weak shaking but no structural damage or injuries. The Japan earthquake, while more powerful at 6.2 magnitude, also did not trigger a tsunami warning despite advisory concerns raised in some reporting.