A magnitude 3.7 earthquake that struck underneath South Los Angeles just after midnight caused light shaking across the Los Angeles Basin.

The earthquake occurred at 12:03 a.m. Wednesday. Light shaking — enough to rattle dishes and windows and rock parked cars — was felt in South L.A., Inglewood, Culver City, Playa Vista and at Los Angeles International Airport, according to the U.S. Geological Survey.

Weak shaking was felt across the L.A. Basin and the San Fernando and San Gabriel valleys and in northern Orange County.

The earthquake’s epicenter was about half a mile southeast of Slauson and La Brea avenues.


The earthquake occurred in the vicinity of the Newport-Inglewood fault zone. The Newport-Inglewood fault has long been considered one of Southern California’s top seismic danger zones because it runs under some of the region’s most densely populated areas, from the Westside of Los Angeles to the Orange County coast.

The Newport-Inglewood fault was responsible for the deadliest earthquake in the modern history of Southern California — the magnitude 6.4 Long Beach earthquake of 1933, which killed about 120 people.

The fault is now known to connect with the Rose Canyon fault system that runs into San Diego. Scientists believe earthquakes as large as magnitudes 6.8 to 7.5 have struck the Newport-Inglewood/Rose Canyon fault system, which stretches from the border of Beverly Hills and Los Angeles through Long Beach and the Orange County coast to downtown San Diego.


A plausible magnitude 6.9 earthquake on the Rose Canyon fault in San Diego, threatening the civic and financial center of California’s second-largest city and the nation’s fourth-biggest naval base, could damage 120,000 of San Diego County’s 700,000 structures and cause $38 billion in economic losses from building and infrastructure damage and $5.2 billion in lost income from business interruptions, according to a report released last month.

I'm happy to have slept thru last night's little quake. It appears to be on the Newport-Inglewood fault, at almost the same location as 4 M3 quakes in April, May and June 2015. Those and today are all deep (~7-8 miles down), way below the oil fields. — Dr. Lucy Jones (@DrLucyJones) April 22, 2020

In the last 10 days, there have been two earthquakes of magnitude 3.0 or greater centered nearby.

An average of five earthquakes with magnitudes between 3.0 and 4.0 occur per year in the greater Los Angeles area, according to a recent three-year data sample.


The earthquake occurred at a depth of 7.4 miles. Did you feel this earthquake? Consider reporting what you felt to the USGS.

Even if you didn’t feel this small earthquake, you never know when the Big One is going to strike. Ready yourself by following our five-step earthquake preparedness guide and building your own emergency kit.

The first version of this article was automatically generated by Quakebot, a computer application that monitors the latest earthquakes detected by the USGS. A Times editor reviewed the post before it was published. It was subsequently revised by a Times journalist. If you’re interested in learning more about the system, visit our list of frequently asked questions.