2014 South Napa earthquake

2014 South Napa earthquake
Damage to the Sam Kee Laundry Building
2014 South Napa earthquake is located in California
2014 South Napa earthquake
Napa
Napa
UTC time2014-08-24 10:20:44
ISC event610572079
USGS-ANSSComCat
Local dateAugust 24, 2014 (2014-08-24)
Local time03:20:44 PDT (UTC-7)
Magnitude6.0 Mw[1]
Depth7 mi (11 km)[1]
Epicenter38°13′N 122°19′W / 38.22°N 122.31°W / 38.22; -122.31[1]
FaultWest Napa Fault
TypeStrike-slip[1]
Areas affectedNorth Bay (San Francisco Bay Area)
California, United States
Total damage$362 million–$1 billion[2][3]
Max. intensityMMI VIII (Severe)[1]
Peak acceleration0.61 g[4]
Casualties1 killed[5]
about 200 injured[6]

The 2014 South Napa earthquake occurred in the North San Francisco Bay Area on August 24 at 03:20:44 Pacific Daylight Time. At 6.0 on the moment magnitude scale and with a maximum Mercalli intensity of VIII (Severe), the event was the largest in the San Francisco Bay Area since the 1989 Loma Prieta earthquake. The epicenter of the earthquake was located to the south of Napa and to the northwest of American Canyon on the West Napa Fault.[7]

Total damage in the southern Napa Valley and Vallejo areas was in the range of $362 million to $1 billion, with one person killed and 200 injured. Other aspects of the event included an experimental earthquake warning system that alerted seismologists several seconds before the damaging shear waves arrived, temporary changes in springs and wells, and the potential for postseismic fault creep.

  1. ^ a b c d e Cite error: The named reference usgs was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference 362 million was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference latimeseconomic was invoked but never defined (see the help page).
  4. ^ Brocher, T. M.; Baltay, A. S.; Hardebeck, J. L.; Pollitz, F. F.; Murray, J. R.; Llenos, A. L.; Schwartz, D. P.; Blair, J. L.; Ponti, D. J.; Lienkaemper, J. J.; Langenheim, V. E.; Dawson, T. E.; Hudnut, K. W.; Shelly, D. R.; Dreger, D. S.; Boatwright, J.; Aagaard, B. T.; Wald, D. J.; Allen, R. M.; Barnhart, W. D.; Knudsen, K. L.; Brooks, B. A.; Scharer, K. M. (2015). "The Mw 6.0 24 August 2014 South Napa Earthquake". Seismological Research Letters. 86 (2A): 309–326. Bibcode:2015SeiRL..86..309B. doi:10.1785/0220150004.
  5. ^ Levs, Josh (September 11, 2014), Powerful California earthquake now blamed for one death, CNN
  6. ^ Cite error: The named reference PD-NPB was invoked but never defined (see the help page).
  7. ^ Fimrite, Peter (August 27, 2014). "Boats, grapes and Poseidon at Napa quake's epicenter". San Francisco Chronicle. Retrieved September 2, 2017.