QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

13km SSW of Rosedale, CA

· 21 km deep · released about 700 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kern County 42 kmVentura County 102 kmKings County 106 kmTulare County 112 kmSanta Barbara County 113 kmSan Luis Obispo County 116 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 2.9 (ml)
Depth
21 km below the surface
Felt
32 reports · strongest reported intensity IV
Nearest
Kern County, 42 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1871 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 32 people have reported feeling it to USGS.

How big was it?

This earthquake released about 700 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 15,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 700 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 35.2710, -119.1785. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kern County, CA 42 km (26 mi) WSW of here earthquakes near Kern County
Ventura County, CA 102 km (63 mi) N of here earthquakes near Ventura County
Kings County, CA 106 km (66 mi) SSE of here earthquakes near Kings County
Tulare County, CA 112 km (70 mi) SSW of here earthquakes near Tulare County
Santa Barbara County, CA 113 km (70 mi) NE of here earthquakes near Santa Barbara County
San Luis Obispo County, CA 116 km (72 mi) E of here earthquakes near San Luis Obispo County

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

Aftershocks so far

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

  1. 1.5 8km WSW of Shafter, CA
  2. 3.1 10km SSW of Rosedale, CA
  3. 2.0 24km ENE of Maricopa, CA
  4. 1.8 17km SE of Buttonwillow, CA
  5. 1.6 18km SW of Lamont, CA
  6. 2.0 14km NNE of Pine Mountain Club, CA
  7. 2.0 8km ENE of Oildale, CA
  8. 1.6 19km WNW of Grapevine, CA
  9. 1.9 5km NNE of Taft, CA
  10. 2.0 10km SW of Buttonwillow, CA
  11. 2.2 21km NNE of Arvin, CA
  12. 1.9 12km N of Grapevine, CA
  13. 1.9 23km SW of Lamont, CA
  14. 1.5 16km NW of Grapevine, CA
  15. 2.1 21km N of Pine Mountain Club, 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 4.9 on 2016-02-24 — it released about 870 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.