September 2014, MRP Engineering, LLC.
On August 24, 2014, at 3:20am, a M6.0 earthquake struck an area in northern California, about 50 kilometers north-northeast of San Francisco. The earthquake originated near the West Napa fault, at a depth of 11 kilometers. The regional seismicity is associated with a system of northwest-trending active faults that define this broad boundary between the Pacific and North American tectonic plates. Major regional faults include the San Andreas, which last ruptured in 1989 in the vicinity of Santa Cruz, California (M7.2 Loma Prieta earthquake), resulting in over $20 billion in losses. The South Napa event affected the local residents, communities, and industry, with economic losses estimated to exceed $1 billion. This report summarizes MRP Engineering observations of earthquake impacts conducted August 24 through 26, 2014.
Read the Report: Engineering Summary Report of the M6 South Napa Earthquake August 24, 2014 (0.75 MB PDF)
