QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

Earthquake near Los Angeles, CA

No earthquake was likely felt in Los Angeles in the 24 hours to 5:25 am PST (13:25 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 2.3 earthquake was recorded 45 km (28 mi) west of Los Angeles, CA, at 6:28 am PST on 14 December 2017 (14:28 UTC), 13 km deep.

USGS: 4km WSW of Malibu Beach, CA

29 km (18 mi) W of Los Angeles, CA · 21 km (13 mi) W of Santa Monica, CA

6:28 am PST, Dec 14, 2017 · · 13 km deep · released about 82 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 53 kmOrange County 96 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
6:28 am PST on 14 December 2017 ()
Where
45 km (28 mi) west of Los Angeles, CA · earthquakes near Los Angeles
Magnitude
M 2.3 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Los Angeles County, 48 km ENE
Nearest mapped fault
Malibu Coast fault, 2 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 3255 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 15 km (9 mi) from the epicentre. In Los Angeles, 45 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: Agoura 15 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 82 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 82 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 17 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 Northridge, California, earthquake · 29 km NE of this epicentre
  2. 5.9 1km ENE of Granada Hills, California · 36 km NE of this epicentre
  3. 5.6 7km NNE of Simi Valley, California · 35 km N of this epicentre
  4. 5.3 2 km SSW of Santa Monica, California · 21 km E of this epicentre
  5. 5.3 The 1973 Point Mugu, California Earthquake · 30 km W 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 34.0123, -118.7300. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Los Angeles County, CA 48 km (30 mi) ENE earthquakes near Los Angeles County
Ventura County, CA 53 km (33 mi) NW earthquakes near Ventura County
Orange County, CA 96 km (59 mi) ESE earthquakes near Orange County

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

Aftershocks so far

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

  1. 1.7 3km E of Granada Hills, CA
  2. 1.6 1km NNE of Huntington Park, CA
  3. 2.3 8km SW of Valencia, CA
  4. 1.7 8km SW of Valencia, CA
  5. 1.7 9km SW of Rancho Palos Verdes, CA
  6. 1.5 5km NNE of Granada Hills, CA
  7. 2.1 9km WNW of Malibu, CA
  8. 1.5 2km ENE of Simi Valley, CA
  9. 2.2 1km NNE of Hermosa Beach, CA
  10. 2.2 17km SSE of Malibu, CA
  11. 2.4 15km WNW of Malibu, CA
  12. 1.7 8km S of Malibu Beach, CA
  13. 2.4 16km SW of Malibu, CA
  14. 1.9 4km WSW of Compton, CA
  15. 1.8 2km NE of Silver Lake, 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.