QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

Earthquake near Los Angeles, CA

No earthquake was likely felt in Los Angeles in the 24 hours to 9:30 am PST (17:30 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 2.6 earthquake was recorded 4 km (3 mi) north-northwest of Los Angeles, CA, at 8:57 am PDT on 9 October 2023 (15:57 UTC), 11 km deep. 246 people have reported feeling it to USGS.

USGS: 0 km SE of Silver Lake, CA

16 km (10 mi) ENE of Los Angeles, CA · 10 km (6 mi) S of Glendale, CA

8:57 am PDT, Oct 9, 2023 · · 11 km deep · released about 230 lb of TNT

10 km30 km60 km120 km N Los Angeles County 12 kmOrange County 64 kmVentura County 86 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
8:57 am PDT on 9 October 2023 ()
Where
4 km (3 mi) north-northwest of Los Angeles, CA · earthquakes near Los Angeles
Magnitude
M 2.6 (ml)
Depth
11 km below the surface
Felt
246 reports · strongest reported intensity IV
Nearest
Los Angeles County, 12 km N
Nearest mapped fault
Hollywood fault, 3 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 1062 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 21 km (13 mi) from the epicentre. In Los Angeles, 4 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: Los Angeles 4 km, intensity II · Glendale 6 km, intensity II · South Pasadena 11 km, intensity II · East Los Angeles 11 km, intensity II · Burbank 11 km, intensity II · Huntington Park 12 km, intensity II · Alhambra 12 km, intensity II · Pasadena 13 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 230 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 65,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 46,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.1× the energy of this one
  4. This earthquake M 2.6 about 230 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 4.5 on 2020-09-19 — about 840 times the energy of this one.

Before 2016, the USGS record lists 24 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 Northridge, California, earthquake · 29 km WNW of this epicentre
  2. 6.6 1971 San Fernando Earthquake, California · 38 km NNW of this epicentre
  3. 5.9 The 1987 Whittier Narrows, California Earthquake · 17 km E of this epicentre
  4. 5.9 1km ENE of Granada Hills, California · 30 km NW of this epicentre
  5. 5.8 10km SSW of Agua Dulce, CA · 38 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 34.0883, -118.2615. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Los Angeles County, CA 12 km (7 mi) N earthquakes near Los Angeles County
Orange County, CA 64 km (40 mi) SE earthquakes near Orange County
Ventura County, CA 86 km (53 mi) WNW earthquakes near Ventura 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. 1.9 10 km SW of Valencia, CA
  2. 2.3 22 km WSW of Manhattan Beach, CA
  3. 1.6 13 km SSE of Las Flores, CA
  4. 1.6 3 km ENE of View Park-Windsor Hills, CA
  5. 1.9 4 km ESE of Placentia, CA
  6. 1.6 2 km NE of Yorba Linda, CA
  7. 1.9 2 km ENE of El Segundo, CA
  8. 2.2 2 km N of Huntington Park, CA
  9. 2.5 3 km N of Huntington Park, CA
  10. 2.0 3 km SE of Marina del Rey, CA
  11. 1.7 4 km NW of Sylmar, CA
  12. 1.8 2 km ENE of Carson, CA
  13. 1.6 2 km NW of Tarzana, CA
  14. 2.3 4 km SW of Sherman Oaks, CA
  15. 1.6 2 km WNW of Rossmoor, 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.