On Monday, September 22, 2025, a magnitude 4.3 earthquake struck the San Francisco Bay Area, centered near Berkeley at about 2:56 a.m. The quake was located near the Hayward Fault, a significant and feared fault line in the region known for potentially producing large earthquakes. The shaking was felt as far as San Francisco, Oakland, Albany, and other East Bay cities. There were no immediate reports of injuries or major damage, but some minor shaking effects like rattling windows and swinging cabinet doors were reported. The earthquake triggered the MyShake early warning app alert system, giving some residents a brief warning before the shaking. The USGS estimates a small chance of additional magnitude 4+ aftershocks within the next week. The event serves as a reminder of the ongoing seismic risk in the Bay Area due to active fault lines like the Hayward Fault, which previously produced a major quake in 1868.