QuakeIndex

Earthquake · reviewed by a seismologist

M 3.6mw

3km WSW of East Los Angeles, CA

· 17 km deep · released about 3.9 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 21 kmOrange County 54 kmVentura County 94 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
Magnitude
M 3.6 (mw)
Depth
17 km below the surface
Felt
3679 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
Nearest
Los Angeles County, 21 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 847 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 3679 people have reported feeling it to USGS.

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.

Where

Epicentre 34.0168, -118.1973. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Los Angeles County, CA 21 km (13 mi) SSE of here earthquakes near Los Angeles County
Orange County, CA 54 km (34 mi) NW of here earthquakes near Orange County
Ventura County, CA 94 km (58 mi) ESE of here earthquakes near Ventura 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. 1.8 8km N of Glendora, CA
  2. 2.1 3km NE of Gardena, CA
  3. 2.6 2km WSW of Silver Lake, CA
  4. 1.5 0km SSW of View Park-Windsor Hills, CA
  5. 1.6 2km NW of Marina del Rey, CA
  6. 2.1 1km WSW of View Park-Windsor Hills, CA
  7. 3.3 1km SE of South Gate, CA
  8. 1.6 3km ENE of La Mirada, CA
  9. 1.5 1km E of View Park-Windsor Hills, CA
  10. 1.6 2km W of Inglewood, CA
  11. 1.6 1km ENE of Carson, CA
  12. 2.3 3km ESE of Carson, CA
  13. 1.5 2km ESE of Carson, CA
  14. 2.2 11km S of Malibu Beach, CA
  15. 1.9 3km ESE of Carson, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.5 on 2020-09-19 — it released about 25 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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