QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

22km SE of Santa Cruz Is. (E end), CA

· 6.9 km deep · released about 950 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 59 kmSanta Barbara County 96 kmLos Angeles County 109 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 3.0 (ml)
Depth
6.9 km below the surface
Felt
5 reports · strongest reported intensity II
Nearest
Ventura County, 59 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3330 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 5 people have reported feeling it to USGS.

How big was it?

This earthquake released about 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 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 33.8690, -119.3798. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ventura County, CA 59 km (37 mi) SSW of here earthquakes near Ventura County
Santa Barbara County, CA 96 km (60 mi) SE of here earthquakes near Santa Barbara County
Los Angeles County, CA 109 km (68 mi) WSW of here earthquakes near Los Angeles County

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

Aftershocks so far

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

  1. 2.3 38km NW of Santa Barbara Is., CA
  2. 3.0 15km SSW of Carpinteria, CA
  3. 2.6 18km W of Malibu, CA
  4. 1.6 12km WNW of Malibu, CA
  5. 2.9 22km SE of Santa Cruz Is. (E end), CA
  6. 2.2 15km SSW of Carpinteria, CA
  7. 2.1 31km NNW of Santa Barbara Is., CA
  8. 2.6 12km W of Malibu, CA
  9. 2.1 22km SSE of Santa Barbara, CA
  10. 1.6 16km SW of Thousand Oaks, CA
  11. 2.9 13km W of Malibu, CA
  12. 1.6 5km SSW of Camarillo, CA
  13. 2.3 27km SW of Santa Cruz Is. (E end), CA
  14. 1.7 18km S of Port Hueneme, CA
  15. 2.1 12km 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.