QuakeIndex

Earthquake · reviewed by a seismologist

M 3.6ml

Earthquake near Los Angeles, CA

No earthquake was likely felt in Los Angeles in the 24 hours to 4:19 am PST (12:19 UTC). The last one was M 3.2, 30 km (19 mi) S, at 12:44 am PDT on 9 October 2026, estimated intensity II (weak) in town; 1,090 felt reports to USGS. Every earthquake near Los Angeles

This page: a magnitude 3.6 earthquake was recorded 46 km (29 mi) west-southwest of Los Angeles, CA, at 2:03 am PST on 25 January 2023 (10:03 UTC), 14 km deep. 1,114 people have reported feeling it to USGS.

USGS: 16km S of Malibu Beach, CA

31 km (19 mi) WSW of Los Angeles, CA · 23 km (15 mi) SW of Santa Monica, CA

2:03 am PST, Jan 25, 2023 · · 14 km deep · released about 3.9 tons of TNT

Every earthquake near Los Angeles Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 53 kmVentura County 66 kmOrange County 89 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
2:03 am PST on 25 January 2023 ()
Where
46 km (29 mi) west-southwest of Los Angeles, CA · earthquakes near Los Angeles
Magnitude
M 3.6 (ml)
Depth
14 km below the surface
Felt
1,114 reports · strongest reported intensity V
Measured shaking
intensity IV (ShakeMap)
Nearest
Los Angeles County, 53 km NE
Nearest mapped fault
San Pedro Basin fault, 1 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 945 days ago

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 69 km (43 mi) from the epicentre. In Los Angeles, 46 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: Santa Monica 24 km, intensity III · Manhattan Beach 27 km, intensity III · Agoura 29 km, intensity II · Redondo Beach 29 km, intensity II · Palos Verdes Estates 30 km, intensity II · Lawndale 32 km, intensity II · Hawthorne 32 km, intensity II · Rancho Palos Verdes 33 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 3.9 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.6 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 43,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 1,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,400× the energy of this one
  4. This earthquake M 3.6 about 3.9 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 8.2× more

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 4.3 on 2021-09-18 — about 10 times the energy of this one.

Before 2016, the USGS record lists 11 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 Northridge, California, earthquake · 39 km NNE of this epicentre
  2. 5.9 1km ENE of Granada Hills, California · 47 km NNE of this epicentre
  3. 5.6 7km NNE of Simi Valley, California · 49 km N of this epicentre
  4. 5.3 2 km SSW of Santa Monica, California · 23 km NE of this epicentre
  5. 5.3 The 1973 Point Mugu, California Earthquake · 34 km WNW 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 33.8863, -118.7027. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Los Angeles County, CA 53 km (33 mi) NE earthquakes near Los Angeles County
Ventura County, CA 66 km (41 mi) NW earthquakes near Ventura County
Orange County, CA 89 km (55 mi) ESE earthquakes near Orange County

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

Aftershocks so far

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

  1. 2.0 13km WNW of Malibu, CA
  2. 1.8 10km WSW of Malibu, CA
  3. 1.5 6km ESE of Moorpark, CA
  4. 2.2 6km WNW of Malibu Beach, CA
  5. 1.7 14km SSE of Port Hueneme, CA
  6. 2.6 5km W of Malibu, CA
  7. 1.7 2km WNW of Silver Lake, CA
  8. 2.5 3km ESE of Carson, CA
  9. 1.6 2km SW of Sylmar, CA
  10. 1.7 22km S of Malibu Beach, CA
  11. 2.7 1km NNW of Signal Hill, CA
  12. 2.3 1km NNW of Signal Hill, CA
  13. 2.1 2km NW of Signal Hill, CA
  14. 3.6 15km SSE of Port Hueneme, CA
  15. 1.6 18km SSE 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.