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6.0 Earthquake Rocks San Francisco

AMERICAN CANYON (CBS SF) — A strong magnitude 6.0 earthquake rocked the San Francisco Bay Area early Sunday morning, centered in the Napa County town of American Canyon, injuring at least 70 people, severely damaging historic buildings in Downtown Napa, rupturing gas lines and water mains across Napa, Sonoma, and Solano Counties leading to multiple fires, plunging entire communities into darkness and buckling and cracking roadways on Highway 37 and State Routes 12 and 121.

At least 60 aftershocks were recorded following the earthquake, the largest quake to hit the Bay Area since the 6.9 magnitude quake hit Loma Prieta nearly 25 years ago. Initial reports had the earthquake measuring 6.1 magnitude. A significant aftershock of at least magnitude 5.0 is likely in the next seven days, with U.S. Geological Survey scientists forecasting a 54 percent chance. There is a 5 percent chance of another quake greater than 6.0.


  • Over 60 Aftershocks In First Hours After Quake
  • Caught On Tape By Hercules Family
  • Napa Buildings Destroyed In 6.0 Quake
  • Highway 37 Ramps Shut Down Pending Investigation
  • USGS Quake Data Page

Napa City Councilmember Peter Mott reports the library and the historic Chinese laundry building suffered significant damage, and bricks and glass are scattered across downtown sidewalks on Second and Third Streets. The old courthouse in Napa has significant damage to the brick as well.

At least four mobile homes  in Napa burned to the ground, and six to eight others were damaged at the same mobile home park. The older homes sitting on blocks slipped off, rupturing gas lines, and sparking fires.

Water mains in residential areas are broken, but it’s not clear how bad the damage from flooding is.

At least 70  injuries were reported by hospitals around Napa because of broken glass  and falling debris.

The U.S. Geological Survey’s automated economic loss software predicts losses above $100 million dollars.

All major Bay Area bridges have been inspected and concluded to be safe.

Callers to KCBS Radio reported a significant shaking motion in the city of Napa, lasting for an extended time.

In Contra Costa County, the quake was felt as a long, rolling, shaking motion with several peaks of movement lasting for an extended time.

People as far away as the South Bay and Davis reported being woken up by the quake, which was centered 6.7 miles beneath Earth’s surface.

Within minutes, more than 600 people had commented on our initial Facebook post about the quake.
“EVERYONE in Petaluma is up and chatting on Facebook. We definitely felt it!” said Ann Popovic.

“(It) Scared me. I’m still scared. Lasted a really LONG time,” said Valerie Gunnell on Facebook.

“Woke up south San Jose,” said Brianne Laiwa.

“Now that was a real earthquake,” exclaimed San Francisco Sunset district resident Matt Wandell.

As you might imagine, the rumbling set off an explosion of tweets:

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