Earthquakes on the Newport Inglewood Fault
During the past few months, beginning with a magnitude 3.3 event on April 13, 2015, there have been 6 M>3 earthquakes on or near the Newport-Inglewood fault in the West Los Angeles area. The latest of these events occurred on saturday June 6 just prior to 10 pm. All of the events are relatively shallow, between 6 - 15 km. It is noteworthy that this fault was responsible for the M6.4 Long Beach earthquakes on March 11, 1933.
An Isoseismal map of this event is shown below (USGS), which indicates the intensity of shaking that was experiencedin the region. The map indicates that the most severe shaking occurred along the part of the fault south of Long Beach, CA.
While we don't expect anything like the events depicted in the recent Hollywood production of "San Andreas", a major earthquake on this fault would do very significant damage throughout the Los Angeles region, and probably cause deaths and injuries. The fault itself has a low probability at this time of sustaining a major earthquake, but it is worth monitoring the situation to determine if it changes.
Shown below are screenshots of the most recent earthquake location using the hazard viewer focusing on the NI fault, and a list of the most recent small earthquakes from the Northern California Data Center.