QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Los Angeles, CA

No earthquake was likely felt in Los Angeles in the 24 hours to 5:08 am PST (13:08 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 1.7 earthquake was recorded 46 km (28 mi) west-southwest of Los Angeles, CA, at 3:42 am PDT on 3 June 2023 (10:42 UTC), 1.7 km deep.

USGS: 22km S of Malibu Beach, CA

31 km (19 mi) SW of Los Angeles, CA · 24 km (15 mi) W of Redondo Beach, CA

3:42 am PDT, Jun 3, 2023 · · 1.7 km deep · released about 12 lb of TNT

Every earthquake near Los Angeles Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 55 kmVentura County 72 kmOrange County 84 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
3:42 am PDT on 3 June 2023 ()
Where
46 km (28 mi) west-southwest of Los Angeles, CA · earthquakes near Los Angeles
Magnitude
M 1.7 (ml)
Depth
1.7 km below the surface
Felt
no reports yet
Nearest
Los Angeles County, 55 km NE
Nearest mapped fault
San Pedro Basin fault, under 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 1255 days ago

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 13 km (8 mi) from the epicentre. In Los Angeles, 46 km away, the estimate is intensity I (not felt). 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.

Earthquakes near other towns within 30 km: Malibu, Manhattan Beach, Hermosa Beach, El Segundo, Palos Verdes Estates, Redondo Beach.

How big was it?

This earthquake released about 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 870,000× the energy of this one
  3. Around the size people start to feel M 3.0 78× the energy of this one
  4. This earthquake M 1.7 about 12 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 4.3 on 2021-09-18 — about 6,500 times the energy of this one.

Before 2016, the USGS record lists 8 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 Northridge, California, earthquake · 44 km NNE of this epicentre
  2. 5.3 2 km SSW of Santa Monica, California · 24 km NE of this epicentre
  3. 5.3 The 1973 Point Mugu, California Earthquake · 39 km WNW of this epicentre
  4. 5.2 1 km SW of Las Flores, California · 22 km N of this epicentre
  5. 5.2 13km S of Malibu Beach, CA · 9 km NNW 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 33.8360, -118.6633. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Los Angeles County, CA 55 km (34 mi) NE earthquakes near Los Angeles County
Ventura County, CA 72 km (45 mi) NW earthquakes near Ventura County
Orange County, CA 84 km (52 mi) ESE earthquakes near Orange County

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

Aftershocks so far

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

  1. 1.8 12 km S of Malibu Beach, CA
  2. 1.9 1 km NNW of Hawthorne, CA
  3. 1.8 14 km W of Malibu, CA
  4. 2.1 3 km W of Lennox, CA
  5. 1.6 1 km N of Universal City, CA
  6. 2.6 0 km NNW of View Park-Windsor Hills, CA
  7. 1.8 0 km N of View Park-Windsor Hills, CA
  8. 1.6 20 km S of San Pedro, CA
  9. 2.5 5 km ESE of Inglewood, CA
  10. 2.5 10 km NW of Malibu, CA
  11. 1.6 0 km W of View Park-Windsor Hills, CA
  12. 1.6 4 km ESE of Gardena, CA
  13. 2.0 1 km WNW of Huntington Park, CA
  14. 2.1 1 km SSE of View Park-Windsor Hills, CA
  15. 2.0 3 km S of Encino, 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.