Earthquake near Lennox, CA

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 10 km (6 mi) from the epicentre. In Lennox, 2 km away, the estimate is intensity II (weak). 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 in town, intensity II · Hawthorne 4 km, intensity II · Westmont 6 km, intensity II · Lawndale 7 km, intensity II · Manhattan Beach 8 km, intensity II · Gardena 9 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
3. Around the size people start to feel M 3.0 160× the energy of this one
4. This earthquake M 1.5 about 5.9 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 18 earthquakes of M5 or more within 50 km; the five largest:

1. 6.7 Northridge, California, earthquake · 33 km NNW of this epicentre Jan 17, 1994
2. 6.4 The 1933 Long Beach, California Earthquake · 49 km SE of this epicentre Mar 11, 1933
3. 5.9 The 1987 Whittier Narrows, California Earthquake · 29 km ENE of this epicentre Oct 1, 1987
4. 5.9 1km ENE of Granada Hills, California · 38 km NNW of this epicentre Jan 17, 1994
5. 5.8 The 1991 Sierra Madre, California Earthquake · 50 km NE of this epicentre Jun 28, 1991

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 33.9508, -118.3687. Map © OpenStreetMap contributors.

Nearby places

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

48 earthquakes have been recorded within 50 km since this one.

1. 2.1 3km SSE of Huntington Beach, CA 17:51 UTC
2. 1.6 1km SSE of Silver Lake, CA 22:47 UTC
3. 2.2 0km ESE of Silver Lake, CA 22:55 UTC
4. 2.0 8km SSW of Huntington Beach, CA 19:59 UTC
5. 1.6 12km SSW of Agua Dulce, CA 13:54 UTC
6. 2.9 1km SE of Silver Lake, CA 10:16 UTC
7. 2.4 12km SSW of Agua Dulce, CA 08:19 UTC
8. 1.6 2km NNE of Granada Hills, CA 04:15 UTC
9. 2.1 2km WSW of Hermosa Beach, CA 02:58 UTC
10. 1.7 7km WSW of Malibu, CA 21:43 UTC
11. 1.6 3km N of Monrovia, CA 12:03 UTC
12. 1.6 4km WNW of La Mirada, CA 08:30 UTC
13. 1.6 3km S of South Whittier, CA 08:27 UTC
14. 1.8 21km S of Malibu, CA 20:44 UTC
15. 1.6 2km W of Walnut, CA 08:30 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 05:54 UTC. 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.