QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

17km W of Malibu, CA

· 11 km deep · released about 1.5 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 39 kmLos Angeles County 69 kmSanta Barbara County 112 kmOrange County 119 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 3.3 (ml)
Depth
11 km below the surface
Felt
567 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
Nearest
Ventura County, 39 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3335 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 567 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.5 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 110,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 4,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 3,500× the energy of this one
  4. This earthquake M 3.3 about 1.5 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 3.2× 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 34.0308, -118.9882. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ventura County, CA 39 km (24 mi) SSE of here earthquakes near Ventura County
Los Angeles County, CA 69 km (43 mi) WSW of here earthquakes near Los Angeles County
Santa Barbara County, CA 112 km (69 mi) ESE of here earthquakes near Santa Barbara County
Orange County, CA 119 km (74 mi) WNW of here earthquakes near Orange 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. 1.5 6km W of Moorpark, CA
  2. 1.9 4km SE of Piru, CA
  3. 2.3 4km WSW of Malibu Beach, CA
  4. 1.6 2km SSE of Piru, CA
  5. 2.1 3km SE of Piru, CA
  6. 2.4 4km SE of Piru, CA
  7. 1.9 33km S of Malibu, CA
  8. 3.1 6km W of Topanga, CA
  9. 1.9 8km NNE of Ventura, CA
  10. 2.3 13km N of Santa Paula, CA
  11. 1.8 14km N of Santa Paula, CA
  12. 1.7 1km W of Woodland Hills, CA
  13. 2.1 14km N of Santa Paula, CA
  14. 1.8 13km SE of Malibu, CA
  15. 1.9 6km N of Moorpark, 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.