QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

12km S of Malibu, CA

· 11 km deep · released about 430 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 59 kmLos Angeles County 61 kmOrange County 100 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 2.8 (ml)
Depth
11 km below the surface
Felt
7 reports · strongest reported intensity III
Nearest
Ventura County, 59 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1817 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 7 people have reported feeling it to USGS.

How big was it?

This earthquake released about 430 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 35,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 25,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.2× the energy of this one
  4. This earthquake M 2.8 about 430 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 33.8993, -118.8198. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ventura County, CA 59 km (36 mi) SSE of here earthquakes near Ventura County
Los Angeles County, CA 61 km (38 mi) WSW of here earthquakes near Los Angeles County
Orange County, CA 100 km (62 mi) WNW of here earthquakes near Orange County
Santa Barbara County, CA 133 km (82 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

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

  1. 1.8 5km W of Malibu, CA
  2. 2.0 4km WSW of El Segundo, CA
  3. 2.0 7km E of Topanga, CA
  4. 2.5 23km SE of Santa Cruz Is. (E end), CA
  5. 1.6 4km WNW of El Segundo, CA
  6. 2.0 3km E of Hawthorne, CA
  7. 1.7 11km W of Palos Verdes Estates, CA
  8. 2.4 12km S of Las Flores, CA
  9. 1.5 5km SSW of Baldwin Hills, CA
  10. 2.0 7km E of Topanga, CA
  11. 2.0 0km WNW of Manhattan Beach, CA
  12. 1.8 0km W of Manhattan Beach, CA
  13. 1.7 1km ESE of Inglewood, CA
  14. 1.6 11km WSW of Manhattan Beach, CA
  15. 2.1 1km WSW 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.