QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

31km S of Malibu, CA

· 0.7 km deep · released about 77 lb of TNT

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10 km30 km60 km120 km N Los Angeles County 72 kmVentura County 77 kmOrange 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 2.3 (ml)
Depth
0.7 km below the surface
Felt
no reports yet
Nearest
Los Angeles County, 72 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1258 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 77 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 12× the energy of this one
  4. This earthquake M 2.3 about 77 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 33.7267, -118.7952. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Los Angeles County, CA 72 km (45 mi) SW of here earthquakes near Los Angeles County
Ventura County, CA 77 km (48 mi) SSE of here earthquakes near Ventura County
Orange County, CA 94 km (59 mi) W of here earthquakes near Orange County
Santa Barbara County, CA 146 km (90 mi) SE of here earthquakes near Santa Barbara County

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

Aftershocks so far

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

  1. 2.5 10 km NW of Malibu, CA
  2. 1.7 1 km N of Malibu Beach, CA
  3. 1.6 17 km S of Camarillo, CA
  4. 2.0 7 km SW of Malibu, CA
  5. 1.6 6 km SSW of Malibu Beach, CA
  6. 1.9 3 km W of Topanga, CA
  7. 1.7 11 km WNW of Malibu, CA
  8. 2.3 32 km W of Rancho Palos Verdes, CA
  9. 1.7 14 km SSW of Thousand Oaks, CA
  10. 1.5 10 km W of Malibu, CA
  11. 1.7 1 km ENE of Lennox, CA
  12. 2.7 27 km SSW of Port Hueneme, CA
  13. 2.0 18km W of Malibu, CA
  14. 1.5 1km SSW of Century City, CA
  15. 1.8 31km NE of Santa Barbara Is., 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 4.2 on 2023-01-25 — it released about 760 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.