QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

5km W of Malibu, CA

· 11 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 47 kmLos Angeles County 60 kmOrange County 107 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 1.8 (ml)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Ventura County, 47 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2518 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 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 34.0022, -118.8687. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ventura County, CA 47 km (29 mi) SSE of here earthquakes near Ventura County
Los Angeles County, CA 60 km (37 mi) WSW of here earthquakes near Los Angeles County
Orange County, CA 107 km (67 mi) WNW of here earthquakes near Orange County
Santa Barbara County, CA 123 km (76 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

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

  1. 2.3 6km WSW of Ventura, CA
  2. 1.8 7km W of Ventura, CA
  3. 1.6 19km S of Port Hueneme, CA
  4. 2.4 6km W of Ventura, CA
  5. 1.6 8km WSW of Ventura, CA
  6. 1.5 5km W of Ventura, CA
  7. 1.5 7km W of Ventura, CA
  8. 2.9 5km W of Ventura, CA
  9. 2.0 5km WNW of Ventura, CA
  10. 2.3 5km W of Ventura, CA
  11. 1.8 7km WSW of Ventura, CA
  12. 2.8 5km W of Ventura, CA
  13. 1.8 5km WNW of Ventura, CA
  14. 1.5 4 km WNW of Ventura, CA
  15. 1.6 6km W of Ventura, 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.