A 6.1 earthquake rocked California’s Bay Area at 3:30 a.m. local time today.
Here’s what you need to know.
1. The Earthquake Today Is the Biggest Since 1989
The 6.1 magnitude is the largest quake to hit the Bay Area since 1989.
The Loma Prieta quake of ’89 registered a 6.9 and famously collapsed a portion of the San Francisco-Oakland Bay Bridge and disrupted the 1989 World Series.
2. The Epicenter Was Southwest of Napa
According to the USGS, the quake was centered 6 miles southwest of Napa, at a ground depth of nearly 7 miles. The USGS suspects that the “causative fault” is the Browns Valley section of the West Napa fault.
Witnesses describe a so-called “rolling quake” that lasted 15-20 seconds.
3. Tens of Thousands of Homes Lost Power
Some 50,000 homes were without power this morning, reports NBC Bay Area.
PG&E has an interactive and frequently updated map of the outages (pictured above), which you can find here.
4. Damage Is Widespread in Napa & Sonoma
In Napa and Sonoma counties, damage is widespread, including fires, water main ruptures, closed roads and structural failure.
There are some 70 reports of injuries, most of them minor, and no known fatalities, reports Mike Rosenberg of the Mercury News:
Updated Napa Earthquake stats Injuries: 70 Major injuries: 2 Water main breaks: 30 Gas main breaks: 50 Homes destroyed: 4
— Mike Rosenberg (@RosenbergMerc) August 24, 2014
5. Aftershocks Are Expected for 7 Days
Probability of 30-70 small aftershocks (M3.0 – 5) are expected over the next 7 days for the South Napa quake—> http://t.co/NItCszX4Zb
— USGS (@USGS) August 24, 2014
Below, raw video of items shaking loose inside a home during the initial quake.
As of 10 AM local time, California Governor Jerry Brown has declared a state of emergency in the Bay Area.
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