QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

4km SW of Baldwin Hills, CA

· 10 km deep · released about 38 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 27 kmOrange County 67 kmVentura County 79 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 2.1 (ml)
Depth
10 km below the surface
Felt
39 reports · strongest reported intensity IV
Nearest
Los Angeles County, 27 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3421 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 39 people have reported feeling it to USGS.

How big was it?

This earthquake released about 38 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 390,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 280,000× the energy of this one
  3. Around the size people start to feel M 3.0 25× the energy of this one
  4. This earthquake M 2.1 about 38 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.

Where

Epicentre 33.9815, -118.4023. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Los Angeles County, CA 27 km (17 mi) SSW of here earthquakes near Los Angeles County
Orange County, CA 67 km (42 mi) WNW of here earthquakes near Orange County
Ventura County, CA 79 km (49 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

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

  1. 1.9 5km NW of Westwood, CA
  2. 3.6 5km NW of Westwood, CA
  3. 2.0 17km SSE of Malibu, CA
  4. 1.7 15km SW of Rancho Palos Verdes, CA
  5. 1.5 6km SSE of Malibu, CA
  6. 1.5 2km NW of Lennox, CA
  7. 1.8 17km SSE of Malibu, CA
  8. 1.7 6km SW of Signal Hill, CA
  9. 1.6 6km S of MacArthur Park, CA
  10. 1.6 4km S of Hollywood, CA
  11. 1.8 4km WSW of Huntington Beach, CA
  12. 1.8 0km WNW of View Park-Windsor Hills, CA
  13. 1.6 3km NNW of Baldwin Park, CA
  14. 2.0 1km SSW of Sherman Oaks, CA
  15. 2.0 6km NE of Altadena, 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.