QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

1km WSW of Manhattan Beach, CA

· 11 km deep · released about 74 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 38 kmOrange County 63 kmVentura County 85 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 2.3 (ml)
Depth
11 km below the surface
Felt
20 reports · strongest reported intensity III
Nearest
Los Angeles County, 38 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2985 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 20 people have reported feeling it to USGS.

How big was it?

This earthquake released about 74 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 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 74 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 33.8822, -118.4162. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Los Angeles County, CA 38 km (23 mi) SSW of here earthquakes near Los Angeles County
Orange County, CA 63 km (39 mi) WNW of here earthquakes near Orange County
Ventura County, CA 85 km (53 mi) SE 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. 2.6 3km SSW of Signal Hill, CA
  2. 1.7 4km WNW of Chatsworth, CA
  3. 1.5 4km SE of Rancho Palos Verdes, CA
  4. 1.6 0km ENE of Universal City, CA
  5. 1.6 22km N of Avalon, CA
  6. 1.6 12km SW of Marina del Rey, CA
  7. 2.9 2km S of Buena Park, CA
  8. 1.9 3km NE of Chatsworth, CA
  9. 2.0 4km SSW of Baldwin Hills, CA
  10. 1.6 3km N of Pacoima, CA
  11. 1.8 1km NNW of Rolling Hills Estates, CA
  12. 1.6 1km E of Baldwin Hills, CA
  13. 1.5 1km NE of Pico Rivera, CA
  14. 2.5 9km WNW of Malibu, CA
  15. 1.9 1km SW of Chatsworth, 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.