A 4.6 magnitude earthquake struck Northern California early Thursday, waking residents across a 100-mile radius, including San Francisco.
A magnitude 4.6 earthquake rattled Northern California early Thursday morning, startling residents awake across a 100-mile stretch that encompassed San Francisco. The epicenter was near Boulder Creek, approximately 65 miles southeast of San Francisco, but the tremors were felt as far north as Petaluma, 40 miles north of the city. Many residents reported receiving earthquake alerts on their phones just moments before experiencing their homes shaking. This event follows a series of smaller quakes in February, including a magnitude 4.2 south of San Ramon, and seismology experts note that the region east of San Francisco has historically experienced earthquake swarms for decades.
