Earthquake · reviewed by a seismologist
M 2.9ml
Earthquake near Lennox, CA
No earthquake was likely felt in Lennox in the 24 hours to 1:27 pm PST (21:27 UTC). The last one was M 1.6, 7 km (4 mi) N, at 5:53 pm PST on 10 November 2026, estimated intensity II (weak) in town. Every earthquake near Lennox
This page: a magnitude 2.9 earthquake was recorded in Lennox, CA, at 4:48 am PDT on 23 September 2024 (11:48 UTC), 13 km deep. 431 people have reported feeling it to USGS.
USGS: 1 km WNW of Lennox, CA
10 km (6 mi) SSE of Los Angeles, CA · in Inglewood, CA
- When
- 4:48 am PDT on 23 September 2024 ()
- Where
- in Lennox, CA · earthquakes near Lennox
- Magnitude
- M 2.9 (ml)
- Depth
- 13 km below the surface
- Felt
- 431 reports · strongest reported intensity IV
- Measured shaking
- intensity III (ShakeMap)
- Nearest
- Los Angeles County, 30 km NNE
- Nearest mapped fault
- Newport-Inglewood-Rose Canyon fault, 3 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 706 days ago
Earthquake alerts for Lennox, CA
Get a notification in this browser when USGS records an earthquake near Lennox, CA. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 31 km (19 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
Likely felt in: Inglewood 2 km, intensity III · Hawthorne 3 km, intensity III · Westmont 5 km, intensity III · Lawndale 6 km, intensity III · Gardena 8 km, intensity III · Manhattan Beach 8 km, intensity III · Willowbrook 10 km, intensity III · Redondo Beach 11 km, intensity III. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 750 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 20,000× the energy of this one
- Magna, Utah 2020 M 5.7 14,000× the energy of this one
- Around the size people start to feel M 3.0 1.3× the energy of this one
- This earthquake M 2.9 about 750 lb of TNT
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
The largest earthquake within 50 km since 2016 was M 4.7 on 2024-09-12 — about 470 times the energy of this one.
Before 2016, the USGS record lists 17 earthquakes of M5 or more within 50 km; the five largest:
- 6.7 Northridge, California, earthquake · 34 km NNW of this epicentre
- 6.4 The 1933 Long Beach, California Earthquake · 48 km SE of this epicentre
- 5.9 The 1987 Whittier Narrows, California Earthquake · 29 km ENE of this epicentre
- 5.9 1km ENE of Granada Hills, California · 39 km NNW of this epicentre
- 5.8 The 1991 Sierra Madre, California Earthquake · 50 km NE of this epicentre
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 33.9410, -118.3607. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Los Angeles County, CA | 30 km (19 mi) | NNE | earthquakes near Los Angeles County |
| Orange County, CA | 61 km (38 mi) | ESE | earthquakes near Orange County |
| Ventura County, CA | 85 km (53 mi) | WNW | earthquakes near Ventura County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
54 earthquakes have been recorded within 50 km since this one.
- 1.6 4 km SSW of South Pasadena, CA
- 1.6 1 km SSE of Inglewood, CA
- 1.9 1 km NE of Inglewood, CA
- 1.5 1 km SE of Inglewood, CA
- 1.6 2 km E of Inglewood, CA
- 1.7 4 km N of Chatsworth, CA
- 2.2 4 km ENE of San Pedro, CA
- 2.0 16 km SSW of San Pedro, CA
- 2.3 4 km SSE of Highland Park, CA
- 1.7 3 km SSE of Highland Park, CA
- 1.5 2 km NNW of Inglewood, CA
- 1.6 17 km S of Malibu Beach, CA
- 1.7 4 km S of Highland Park, CA
- 1.6 10 km W of Palos Verdes Estates, CA
- 1.8 9 km WSW of Malibu, CA
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.