01/02/2020, M4.0 near Port Hueneme


  • 02 Jan 2020 02:12:59 PST, (33.920, -119.223), depth 0.1km.
  • 25km S of Port Hueneme, California


  • As of 02 Jan 2020, 07:52AM PST, there have been no aftershocks recorded.
  • Aftershocks may be expected in the next few days, the largest expected is approximately 1 magnitude unit smaller than the mainshock.
  • There is a small chance (about 5%) that a larger quake could occur, with the likelihood decreasing over time.

Historical Seismicity

  • Since our records began in 1932 we’ve had 1 events of M4 or greater within 10km of today’s event, the M5.3 on 21 Feb 1973.


  • Nearby faults: Anacapa-Dume fault (1.7 km), Santa Cruz_Santa Catalina Ridge fault zone (4.1 km), Malibu Coast fault zone (Malibu Coast fault) (8.1 km) and Santa Cruz Island fault (11.9 km).**

Additional Information

Below are the waveform data associated with this event, as recorded in our Live Seismograms Feed.

**U.S. Geological Survey and California Geological Survey, 2006, Quaternary fault and fold database for the United States, accessed 2015, from USGS web site: https://earthquake.usgs.gov/hazards/qfaults/

This information is subject to change as more up-to-date data become available.

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