QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

9km WSW of Grapevine, CA

· 16 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kern County 54 kmVentura County 63 kmSanta Barbara County 102 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 1.9 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Kern County, 54 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3779 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 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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 34.9225, -119.0228. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kern County, CA 54 km (34 mi) SSW of here earthquakes near Kern County
Ventura County, CA 63 km (39 mi) N of here earthquakes near Ventura County
Santa Barbara County, CA 102 km (64 mi) ENE of here earthquakes near Santa Barbara County
Los Angeles County, CA 107 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

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

  1. 1.8 16km SE of Arvin, CA
  2. 2.8 25km NW of Grapevine, CA
  3. 1.8 6km WSW of Bakersfield, CA
  4. 2.4 14km N of Santa Paula, CA
  5. 1.7 4km S of Frazier Park, CA
  6. 1.7 13km NNE of Ojai, CA
  7. 2.2 13km NNE of Ojai, CA
  8. 1.8 14km N of Santa Paula, CA
  9. 1.7 20km S of Maricopa, CA
  10. 1.9 17km ENE of Grapevine, CA
  11. 1.6 20km SSE of Gorman, CA
  12. 2.7 10km SE of Gorman, CA
  13. 1.8 16km NE of Ojai, CA
  14. 1.7 21km SSW of Tehachapi, CA
  15. 1.6 13km WNW of Castaic, 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 2,200 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.