QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

11km WSW of Grapevine, CA

· 13 km deep · released about 94 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kern County 57 kmVentura County 61 kmSanta Barbara County 100 kmLos Angeles County 106 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 2.3 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Kern County, 57 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2985 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 94 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 160,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 10× the energy of this one
  4. This earthquake M 2.3 about 94 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 34.9055, -119.0420. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kern County, CA 57 km (35 mi) SSW of here earthquakes near Kern County
Ventura County, CA 61 km (38 mi) N of here earthquakes near Ventura County
Santa Barbara County, CA 100 km (62 mi) ENE of here earthquakes near Santa Barbara County
Los Angeles County, CA 106 km (66 mi) NW 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

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

  1. 2.0 13km NNW of Piru, CA
  2. 2.8 16km NNW of Grapevine, CA
  3. 2.0 15km NW of Grapevine, CA
  4. 1.7 7km NW of Pine Mountain Club, CA
  5. 1.8 25km ENE of Maricopa, CA
  6. 1.6 17km S of Maricopa, CA
  7. 1.5 15km WNW of Grapevine, CA
  8. 1.7 24km ENE of Maricopa, CA
  9. 1.9 14km WNW of Pine Mountain Club, CA
  10. 2.7 12km NE of Ojai, CA
  11. 1.6 17km ESE of Arvin, CA
  12. 1.9 17km N of Pine Mountain Club, CA
  13. 3.0 5km WNW of Arvin, CA
  14. 2.1 18km NNW of Neenach, CA
  15. 1.6 10km E of Taft, 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 4.1 on 2016-03-12 — it released about 500 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.