A burst of 90 micro-quakes shook neighborhoods near Los Angeles overnight, clustered along the Newport-Inglewood Fault Zone, with the largest at magnitude 2.7.
Story Highlights
- United States Geological Survey recorded 90 micro-quakes near Lennox and Westmont, magnitudes 1.0–2.7.
- Small quakes also hit near Inglewood and offshore near Avalon during the same window.
- The swarm aligned with the Newport-Inglewood Fault Zone, a known strike-slip fault.
- No major damage reports surfaced; counts varied as catalogs updated.
What Shook And Where
United States Geological Survey data logged 90 small earthquakes from Friday 8:05 p.m. to Saturday 2:30 p.m., centered around unincorporated Lennox and Westmont in South Los Angeles. Magnitudes ranged from 1.0 to 2.7. Reporters described the activity as a swarm, not a single quake with aftershocks. The events were shallow and close together in time. Residents across nearby blocks reported brief shaking, thumps, or none at all, which is typical for quakes at these sizes.
Other small quakes hit the wider region during the same period. A magnitude 2.6 struck near Westmont early Saturday. Trackers also showed a magnitude 2.6 near Inglewood with a depth near nineteen kilometers and a handful of felt reports. Offshore near Avalon on Santa Catalina Island, magnitudes 3.4, 3.0, and 2.6 were noted. These events support a broader regional flurry across Southern California, not just one block of the city.
Why The Newport-Inglewood Fault Matters
Reporters tied the Lennox-Westmont swarm to the Newport-Inglewood Fault Zone. This fault runs from Culver City to Newport Beach and is a right-lateral, or side-by-side, sliding fault. The fault has produced damaging earthquakes in the past century and remains a key line of risk that crosses dense urban areas. When small clusters line up along this structure, scientists watch more closely, even when each quake is minor.
Scientists define a swarm as a burst of many small quakes without one clear main event. Swarms can last hours, days, or longer. Many have similar sizes. The United States Geological Survey explains that swarms do not always mean a larger quake is coming. They can reflect fluid movement at depth or other slow changes on nearby faults. That is why officials track patterns but avoid dramatic claims about what comes next.
Counts Shift As Data Updates
Different outlets reported more than sixty, more than eighty, or exactly ninety events. That is normal in the first day of a swarm. Event catalogs start with automatic picks and then get reviewed. Tally changes often reflect time windows, area filters, and recalculated magnitudes. The bottom line remains clear: Los Angeles saw a short burst of small quakes, most too weak to cause damage, but enough to remind people of the region’s constant fault motion.
We have an earthquake swarm currently in process in the Los Angeles Basin. No major quakes yet, but over 100 minor ones in that large cluster. Consider how the massive erosion that struck many SoCal beaches transported tons of sand to new locations and altered mass distribution. pic.twitter.com/kzHx4TQ6LF
— Stefan Burns (@StefanBurnsGeo) September 13, 2026
Local trackers and third-party pages help the public see updates, but they often mark events as preliminary. The best practice is to check United States Geological Survey event pages and local emergency channels for confirmed details. That approach keeps attention on facts rather than fear. It also helps people prepare calmly with basics like water, flashlights, and a family plan. Small quakes pass, but readiness is what limits harm when a larger one arrives.
What This Means For Everyday Life
For most residents, this swarm brought a few seconds of shaking or a dull jolt. Trains, airports, and freeways stayed open. Buildings did not report damage in the initial coverage. Still, these events expose gaps in public alerts and trust. People on the left and right share a worry that big systems talk past them until after a scare. Clear, fast notices from city and county offices would help settle nerves and cut the spread of wild talk online.
Small swarms are a warning to get the simple things right. Keep shoes by the bed. Strap tall furniture. Know how to text loved ones when lines jam. Store water and basic supplies for several days. None of this is partisan. It is about neighbors helping neighbors when the ground moves. Government has a duty to make this easy with plain guides, working alert systems, and drills that include seniors, renters, and low-income families.
Accountability And Next Steps
City leaders should publish a short after-action note within a day of swarms. That note should list what happened, what was checked, and how to prepare next. Regional agencies should explain how they judge a swarm versus aftershocks in plain words. They should also say how many sensors are active on the Newport-Inglewood Fault Zone. When officials share clear facts fast, people spend less time guessing and more time getting ready together.
Sources:
nypost.com, latimes.com, earthquake.usgs.gov, ktla.com, earthquaketracker.org
