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Author Topic: Aug. 24, 2014 San Francisco Bay Area 6.0 Earthquake  (Read 637 times)
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MuffyBee
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« on: August 24, 2014, 09:28:49 AM »

http://sanfrancisco.cbslocal.com/2014/08/24/6-1-earthquake-rocks-san-francisco-bay-area-epicenter-in-solano-countys-american-canyon-quake-usgs/
Strong 6.0 Earthquake Rocks San Francisco Bay Area, Significant Damage In Napa
August 24, 2014


U.S. Geological Survey map of 6.0 earthquake. (USGS)

AMERICAN CANYON (CBS SF) — A magnitude 6.0 earthquake rocked the San Francisco Bay Area early Sunday morning, centered in the Napa County town of American Canyon, causing widespread power outages in Napa and Sonoma, causing moderate damage across the region, significantly damaging historic buildings in downtown Napa, and forcing the CHP to close ramps on a major highway.
At least 36 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.
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.
At least two homes in Napa were on fire. Water mains in residential areas are broken, but it’s not clear how bad the damage from flooding is.
Several injuries are reported in Napa because of broken glass.

Jessica Turner, from the U.S. Geological Survey, reports aftershocks of up to 5.0 are likely in the next week.  There is only a 5 percent chance of a stronger quake during the next week.
As the first major earthquake to hit the Bay Area in the age of smartphones and social media, photos and damage reports quickly surfaced moments after the quake.
Damage from #NapaQuake in downtown #Napa Vintners Collective http://t.co/4e2P3QBb8l—
Napa Register Photo (@NVR_Photo) August 24, 2014
The CHP closed State Road 37 from Sonoma Blvd to Fairgrounds because of possible roadway damage.
 
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MuffyBee
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« Reply #1 on: August 24, 2014, 09:31:14 AM »

August 24, 2014 Tweets
https://twitter.com/CHP_GoldenGate

CHP Golden Gate @CHP_GoldenGate  ·  7m
#Earthquake aftershocks still a risk. Make sure you take precautions if you must drive today, especially in the North Bay region

 CHP Golden Gate @CHP_GoldenGate  ·  10m
No closures currently which would affect @RaceSonoma traffic. We will know more during daylight hours. @LeylaGulenABC7 @MikeyNoWay

 CHP Golden Gate @CHP_GoldenGate  ·  13m
Reported roadway damage: SR-121 / Cuttings Wharf, SR-29 / SR-121, Old Sonoma btwn Congress Valley / Buhman. Rdwys open, damage coned off

 CHP Golden Gate @CHP_GoldenGate  ·  1h
#Napa SR-121 at SR-29, roadway damage reported. Cracks in road may cause flat tires. #DriveSafe in area

 CHP Golden Gate @CHP_GoldenGate  ·  1h
#CHP Officers report no roadway damage in #Marin & #Santa Rosa areas so far. Most reported damage confined to #Napa & #Sonoma areas

 CHP Golden Gate @CHP_GoldenGate  ·  2h
#Napa Congress Valley Rd and Buhman Ave closed for significant roadway damage.

 CHP Golden Gate @CHP_GoldenGate  ·  2h
#Vallejo @CaltransD4 on scene SR-37. SR-37 WB / Sonoma Blvd off-ramp remains closed, all other roads now open. #Caltrans assessing further

 CHP Golden Gate @CHP_GoldenGate  ·  2h
#UPDATE SR-37 Closures: WB off-ramp to Sonoma Blvd Closed, WB I-80 to SR-37 closed at this time. Other SR-37 roads open. @CaltransD4 enroute

 CHP Golden Gate @CHP_GoldenGate  ·  2h
#Vallejo SR-37 closed from Sonoma Blvd to Fairgrounds for roadway damage. @CaltransD4 enroute to evaluate

 CHP Golden Gate @CHP_GoldenGate  ·  2h
#Napa SR-12/121 at Cuttings Wharf - Damage reported to roadway, affected sections coned off. Be careful in area

 CHP Golden Gate @CHP_GoldenGate  ·  2h
#CHP officers so far reporting no damage to roadways in South Bay, Peninsula, East Bay. Officers still checking for obvious roadway damage

 CHP Golden Gate @CHP_GoldenGate  ·  2h
Thank you for following us. In case of emergency we'll be able to provide updated information to many. Good job #BayArea!

 CHP Golden Gate @CHP_GoldenGate  ·  2h
Power outages in #Napa & #Sonoma counties causing signal outages throughout region. Treat all non-functional signals as all-way stop signs!

 CHP Golden Gate @CHP_GoldenGate  ·  2h
Please remember! Use 9-1-1 ONLY if an emergency! Report all non-emergency issues to CHP by calling 1-800-TELL-CHP.

 CHP Golden Gate @CHP_GoldenGate  ·  2h
SR 37 at Sonoma Boulevard needs closer evaluation. Please expect delays in area.

 CHP Golden Gate @CHP_GoldenGate  ·  3h
Our Golden Gate Communications Center shook pretty good but everybody OK. Our Dispatchers (aka lifeline) are sooooooo awesome!
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« Reply #2 on: August 24, 2014, 09:35:41 AM »

August 24, 2014 Tweets
https://twitter.com/austinkellerman

Austin Kellerman @AustinKellerman  ·  4m
.@abc7newsBayArea reports triage area at hospital in #Napa. Numerous people treated. Injuries appear minor #napaquake
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« Reply #3 on: August 24, 2014, 11:45:48 AM »

http://www.chron.com/news/us/article/USGS-6-0-earthquake-shakes-Northern-California-5708797.php
3 people critically injured after California quake
August 24, 2014

NAPA, Calif. (AP) — A large earthquake caused significant damage and left three critically injured in California's northern Bay Area early Sunday, igniting fires, sending at least 87 people to a hospital, knocking out power to tens of thousands and sending residents running out of their homes in the darkness.

Two adults and one child have critical injuries and Queen of the Valley hospital has treated 87 people, the city of Napa in California wine country said in a statement Sunday. Most patients have cuts, bumps, bruises, said Vanessa DeGier, spokeswoman for the hospital in Napa. She says the facility has treated a hip fracture and heart attack, but it's unclear if it was related to the 6.0-magnitude earthquake. The hospital has set up a triage tent and many people are still coming in, DeGier said.

The quake caused six significant fires, including at a mobile home part, Napa Division Fire Chief Darren Drake said. Four mobile homes have been destroyed and two others damaged, the city said. Several other smaller fires have been reported and firefighting efforts have been complicated by broken water mains.

The earthquake struck just before 3:30 a.m. about 4 miles northwest of American Canyon, which is about 6 miles southwest of Napa, said Leslie Gordon of the U.S. Geological Survey said. It's the largest earthquake to shake the Bay Area since the 6.9-magnitude Loma Prieta quake in 1989, the USGS said. That earthquake struck the San Francisco Bay Area on Oct. 17, 1989 during a World Series game between the San Francisco Giants and the Oakland Athletics, collapsing part of the Bay Bridge roadway and killing more than 60 people, most when an Oakland freeway fell.

"There's collapses, fires," said Napa Fire Capt. Doug Bridewell, standing in front of large pieces of masonry that broke loose from a turn of the century office building where a fire had just been extinguished. "That's the worst shaking I've ever been in."
 
Three historic buildings in Napa have been damaged, including the county courthouse, and at least two downtown commercial buildings have been severely damaged. A Red Cross evacuation center has been set up at a high school and crews are assessing damage to homes.

The shaking emptied cabinets in homes and store shelves, set off car alarms and had residents of neighboring Sonoma County running out of their houses and talking about damage inside their homes. Officials say widespread power outages have been reported in the area.

"It was a rolling quake, said Oakland resident Rich Lieberman. "It started very much like a rolling sensation and just got progressively worse in terms of length. Not so much in terms of shaking, but it did shake. It felt like a side-to-side kind of rolling sensation. Nothing violent but extremely lengthy and extremely active."

The USGS says the depth of the earthquake was just less than seven miles, and numerous small aftershocks have occurred in the Napa wine country.

"A quake of that size in a populated area is of course widely felt throughout that region," said Randy Baldwin, a geophysicist with the U.S. Geological Survey in Golden, Colorado. "The 6.0 is a sizeable quake for this area. It's a shallow quake. It's about 6 miles deep. We received hundreds of reports on our website from people that felt it in the surrounding area."

California Highway Patrol Officer Kevin Bartlett said cracks and damage to pavement closed the westbound Interstate 80 connector to westbound State Route 37 in Vallejo and westbound State Route 37 at the Sonoma off ramp. He says there haven't been reports of injuries or people stranded in their cars, but there are numerous flat tires from motorists driving over damaged roads.

Highway Patrol and the California Department of Transportation was checking roadways for damage, Bartlett said.

California Highway Patrol Officer Daniel Hill told KTVU-TV that road damage appears confined to the Napa and Sonoma areas. He said there appears to be no damage to major bridges in the Bay Area.

In Napa, city spokesman Barry Martin there has been significant damage. Store windows were broken and water mains broke in several locations, one of which left at least one street flooded. Gas breaks have also been reported in several areas. Power outages left streetlights dark.
 
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