QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Los Angeles, CA

No earthquake was likely felt in Los Angeles in the 24 hours to 2:23 am PST (10:23 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 1.6 earthquake was recorded 40 km (25 mi) west-southwest of Los Angeles, CA, at 5:12 pm PST on 24 December 2018 (01:12 UTC), 14 km deep.

USGS: 15km S of Las Flores, CA

25 km (16 mi) WSW of Los Angeles, CA · 18 km (11 mi) SW of Santa Monica, CA

5:12 pm PST, Dec 24, 2018 · · 14 km deep · released about 7.3 lb of TNT

Every earthquake near Los Angeles Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 48 kmVentura County 68 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
5:12 pm PST on 24 December 2018 ()
Where
40 km (25 mi) west-southwest of Los Angeles, CA · earthquakes near Los Angeles
Magnitude
M 1.6 (ml)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Los Angeles County, 48 km NE
Nearest mapped fault
San Pedro Basin fault, 6 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 2868 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. In Los Angeles, 40 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, Santa Monica, El Segundo, Manhattan Beach, Topanga, Hermosa Beach.

How big was it?

This earthquake released about 7.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.3 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 12 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 Northridge, California, earthquake · 36 km NNE of this epicentre
  2. 5.9 1km ENE of Granada Hills, California · 44 km NNE of this epicentre
  3. 5.6 7km NNE of Simi Valley, California · 47 km N of this epicentre
  4. 5.3 2 km SSW of Santa Monica, California · 17 km NE of this epicentre
  5. 5.3 The 1973 Point Mugu, California Earthquake · 38 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 33.9018, -118.6433. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Los Angeles County, CA 48 km (30 mi) NE earthquakes near Los Angeles County
Ventura County, CA 68 km (42 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

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

  1. 1.7 1km ENE of Bellflower, CA
  2. 1.9 17km W of Manhattan Beach, CA
  3. 1.6 1km NNW of Downey, CA
  4. 1.7 4km WSW of Marina del Rey, CA
  5. 1.7 3km WNW of Inglewood, CA
  6. 1.5 1km NE of Westwood, CA
  7. 1.8 1km WNW of Century City, CA
  8. 2.1 0km NNW of Century City, CA
  9. 1.5 0km NNW of Century City, CA
  10. 1.6 0km WNW of Century City, CA
  11. 2.9 0km SSW of Century City, CA
  12. 1.5 2km WNW of Willowbrook, CA
  13. 1.9 16km S of San Pedro, CA
  14. 1.7 8km NNE of Malibu, CA
  15. 2.0 3km ESE of Northridge, 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.