The reported epicenter of the 2014 South Napa earthquake was located beneath the Napa Valley Marina
The West Napa Fault is a 57 km (35 mi) long geologic fault in Napa County, in the North Bay region of the San Francisco Bay Area in northern California. It is believed to be the northern extension of the Calaveras Fault in the East Bay region.
It has been mapped as a Late Pleistocene-Holocene active fault, and is considered to be predominantly a right lateral strike-slip fault.[1] The fault was discovered in 1976 by Gene Boudreau, a ground water drilling specialist from Sebastopol.[2] In 2023 there was data showing that the West Napa Fault is actually nine miles longer than previously known. [3]
^Wesling, John R.; Hanson, Kathryn L. (2008). "Mapping of the West Napa Fault zone for input into the Northern California Quaternary Fault Database" (PDF). USGS. Retrieved 25 August 2014.
^Jensen, Peter (August 31, 2014). "A lesser fault line blamed for Sunday's earthquake". Napa Valley Register. Napa, CA: Lee Enterprises, Inc. Retrieved August 31, 2014.
^Fault line that caused 2014 Napa quake longer, potentially stronger than previously thought: USGS, ABC7 News San Francisco, 26 December 2023
The WestNapaFault is a 57 km (35 mi) long geologic fault in Napa County, in the North Bay region of the San Francisco Bay Area in northern California...
network of faults trends north-northwest in the area of the WestNapaFault, where it is 50 miles (80 km) wide from west to east. The WestNapaFault transfers...
Alum Rock event. It is believed to link with the Hayward fault, as well as the WestNapaFault, north of the Carquinez Strait. It passes through or near...
This list covers all faults and fault-systems that are either geologically important[clarification needed] or connected to prominent seismic activity.[clarification...
fault zone as the Green Valley fault, which lies just a few miles to the north across the Suisun Bay. The fault is situated at the east of WestNapa Fault...
earthquake was near the WestNapaFault, a previously unmarked fault. Several unreinforced masonry buildings in downtown Napa suffered exterior damage...
Hills are a mountain range in Napa County, California on the northwest side of the town of Yountville. The WestNapaFault extends into the Yountville Hills...
vineyards with distinct geologies in the St Helena AVA, separated by the WestNapaFault line. Grace estate was formed by a discrete volcanic event 5 million...
Lake Berryessa is the largest lake in Napa County, California, United States. This reservoir in the Vaca Mountains was formed following the construction...
Livermore had as much area under vine as Napa Valley did at that time. However, it remained relatively unknown, while Napa rose to worldwide prominence. Wente...
Francisco Bay, San Pablo Bay, and Suisun Bay: Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara, Solano, Sonoma, and San Francisco. Other definitions...
Vineyards are divided by sub-faults of the WestNapa seismic line. Cabernet Sauvignon was planted on the north side of the fault in layers of volcanic ash...
in the Point Sur area 145–160 km (90-100 mi) to the north and west of the SG-SS-H fault. Based on paleomagnetic signatures, the Morro Rock-Islay Hill...
Franklin Fault (between the WestNapa and Rodgers Creek Faults). Although surface rupturing events have been documented on the Hayward–Rodgers Creek Fault System...
was the most destructive wildfire in California history, burning parts of Napa, Sonoma, and Lake counties, inflicting its greatest losses in the city of...
roughly west–east trend. During the collision with Eurasia the area has undergone shortening, involving both reactivation of the original rift faults and...
Coast Ranges. They divide the Suisun Valley on the east side, from Napa Valley on the west. Historically the southern part of the range has been referred...
and Klebold as heroes or martyrs. Harris and Klebold have become what the Napa Valley Register have called "cultural icons" for troubled youth. According...
reaches up to 3,000 ft (900 m) thick near the San Andreas fault and thins out towards the north and west. The Paso Robles formation is a well known aquifer that...
Pocket Fire, Sonoma County, Atlas Fire, Napa County Norrbom, Adobe, Partrick, Pythian and Nuns fires of Sonoma and Napa County Cascade Fire, Yuba County On...
bordered on the east by the Diablo Range, the San Andreas Fault, and State Route 25; and on the west by the Salinas Valley, Santa Lucia Range, and U.S. Route...
moved 200 miles (320 km) from its original location on the San Andreas Fault, embedded in a portion of the California Pacific Coast Ranges. Pinnacles...
their coastal migrations. The offshore faultswest of Point Dume in southern California are part of a regional fault system extending about 200 kilometers...
The secondary faults lay to the west of the main SAF at the extreme southern portion, including the active and young San Jacinto Fault Zone, which may...
Formation. Gravels in the Petaluma Formation did not come from rocks located in Napa, but have been sourced to mountains east of San Jose, California. This does...
inspired several instances of mass killings in the United States and globally. Napa Valley Register have called the pair "cultural icons". Author of Columbine...
Retrieved 2018-10-12. Goetting, Jay (2003-08-20). "Toy story: Napa to get $200,000 in lawsuit". Napa Valley Register. Retrieved 2018-10-12. "KB Toys settles...
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