QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

11 km WNW of Malibu, CA

· 14 km deep · released about 1,200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 39 kmLos Angeles County 62 kmOrange County 113 kmSanta Barbara County 116 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 3.1 (ml)
Depth
14 km below the surface
Felt
108 reports · strongest reported intensity IV
Measured shaking
intensity II (ShakeMap)
Nearest
Ventura County, 39 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 872 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 108 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 280,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 12,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 8,800× the energy of this one
  4. This earthquake M 3.1 about 1,200 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.3× 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 34.0573, -118.9118. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ventura County, CA 39 km (24 mi) SSE of here earthquakes near Ventura County
Los Angeles County, CA 62 km (38 mi) WSW of here earthquakes near Los Angeles County
Orange County, CA 113 km (70 mi) WNW of here earthquakes near Orange County
Santa Barbara County, CA 116 km (72 mi) ESE 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

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

  1. 2.4 2 km NNE of Malibu, CA
  2. 2.4 6 km ESE of Ojai, CA
  3. 3.6 8 km WNW of Palos Verdes Estates, CA
  4. 1.8 17 km SE of Port Hueneme, CA
  5. 1.8 16 km WSW of Manhattan Beach, CA
  6. 1.7 14 km S of Malibu Beach, CA
  7. 1.5 4 km WNW of Malibu Beach, CA
  8. 3.0 15 km S of Camarillo, CA
  9. 1.8 2 km NW of Marina del Rey, CA
  10. 2.1 5 km W of Hermosa Beach, CA
  11. 2.4 6 km SSE of Malibu, CA
  12. 1.9 4 km NNE of El Segundo, CA
  13. 1.9 15 km SW of Marina del Rey, CA
  14. 2.2 9 km NNE of Ventura, CA
  15. 2.0 10 km WNW of Malibu, 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 5.1 on 2023-08-20 — it released about 1,000 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.