Editing Oxnard, California (section)

===Geology===

Oxnard is on a [[tectonics|tectonically]] active plate since most of [[Coastal California]] is near the boundaries between the [[Pacific Plate|Pacific]] and [[North American Plate|North American]] Plates. The [[San Andreas Fault]], which demarcates this boundary, is about 40 miles away.

One active [[Fault (geology)|fault]] that transverses Oxnard is the [[Oak Ridge Fault]], which straddles the [[Santa Clara River Valley]] westward from the [[Santa Susana Mountains]], crosses the [[Oxnard Plain]] through Oxnard, and extends into the [[Santa Barbara Channel]]. The coastline is subject to inundation by a [[tsunami]] up to 23 feet in height.<ref>{{Cite news|url=http://www.nbclosangeles.com/news/local/Ventura-Oxnard-Tsunami-Risk-Earthquake-Fault-Study-322388791.html|title=Ventura, Oxnard Might Be at Greater Tsunami Risk: Study|agency=Associated Press|last=Lloyd|first=Jonathan|via=NBC Southern California|language=en|date=August 20, 2015|access-date=November 20, 2019}}</ref>

The fault has significantly contributed to [[Seismology|seismic]] activity in the Oxnard region and beyond. The January 17, 1994,  6.7 {{M|w}} [[1994 Northridge earthquake|Northridge earthquake]] is believed to have occurred in the Santa Clarita extension of the Oak Ridge Fault. [[Landslide]]s and ridge-top shattering resulting from the Northridge earthquake were observed above [[Moorpark]], a city {{convert|19.6|mi|abbr=on}}<ref>{{cite web|title=Distance from Oxnard, CA to Moorpark, CA by car, bike, walk|url=http://www.usageo.org/distance/654652-649138|website=www.usageo.org|publisher=USAGeo.org|access-date=May 23, 2016}}</ref> east of Oxnard.<ref>{{cite web |url=http://www.mpacorn.com/News/2004 |title=MPAcorn.com |publisher=MPAcorn.com |access-date=November 13, 2011 }}{{Dead link|date=April 2019 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>