QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

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

· 4.9 km deep · released about 110 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 57 kmSanta Barbara County 95 kmLos Angeles 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 2.4 (ml)
Depth
4.9 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
Ventura County, 57 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1511 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 110 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 140,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 99,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.8× the energy of this one
  4. This earthquake M 2.4 about 110 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 33.8868, -119.3640. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ventura County, CA 57 km (35 mi) SSW of here earthquakes near Ventura County
Santa Barbara County, CA 95 km (59 mi) SE of here earthquakes near Santa Barbara County
Los Angeles County, CA 107 km (67 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

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

  1. 2.3 22km SSE of Santa Cruz Is. (E end), CA
  2. 1.9 19km S of Camarillo, CA
  3. 1.8 8km NW of Malibu, CA
  4. 2.1 20km SSE of Santa Cruz Is. (E end), CA
  5. 2.1 21km S of Santa Barbara, CA
  6. 1.7 7km WSW of Malibu, CA
  7. 1.8 15km WNW of Malibu, CA
  8. 1.7 21km SE of Santa Cruz Is. (E end), CA
  9. 2.4 9km WSW of Malibu, CA
  10. 1.5 16km WNW of Malibu, CA
  11. 2.5 18km SSE of Santa Cruz Is. (E end), CA
  12. 1.6 17km S of Carpinteria, CA
  13. 1.7 17km SSE of Carpinteria, CA
  14. 1.6 10km SE of Port Hueneme, CA
  15. 1.6 13km SE of Port Hueneme, 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 5.3 on 2018-04-05 — it released about 24,000 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.