QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

10km SSW of Rosedale, CA

· 25 km deep · released about 1,400 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kern County 43 kmKings County 101 kmVentura County 106 kmTulare County 109 kmSan Luis Obispo County 113 kmSanta Barbara County 115 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 3.1 (ml)
Depth
25 km below the surface
Felt
90 reports · strongest reported intensity IV
Nearest
Kern County, 43 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1884 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 90 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,400 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 240,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,700× the energy of this one
  4. This earthquake M 3.1 about 1,400 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.5× more

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 35.3097, -119.2053. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kern County, CA 43 km (27 mi) W of here earthquakes near Kern County
Kings County, CA 101 km (63 mi) SSE of here earthquakes near Kings County
Ventura County, CA 106 km (66 mi) N of here earthquakes near Ventura County
Tulare County, CA 109 km (68 mi) SSW of here earthquakes near Tulare County
San Luis Obispo County, CA 113 km (70 mi) E of here earthquakes near San Luis Obispo County
Santa Barbara County, CA 115 km (71 mi) NE of here earthquakes near Santa Barbara County

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

Aftershocks so far

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

  1. 1.5 8km NNE of Grapevine, CA
  2. 1.6 20km NW of Grapevine, CA
  3. 1.7 14km SW of Lamont, CA
  4. 2.1 18km NW of Grapevine, CA
  5. 1.7 18km NW of Grapevine, CA
  6. 2.5 15km SSE of Buttonwillow, CA
  7. 1.6 19km ENE of Maricopa, CA
  8. 2.4 13km NNW of Grapevine, CA
  9. 2.6 12km NNW of Grapevine, CA
  10. 2.8 12km NNW of Grapevine, CA
  11. 3.5 13km NNW of Grapevine, CA
  12. 1.8 19km E of Maricopa, CA
  13. 2.0 19km E of Maricopa, CA
  14. 1.8 13km N of Pine Mountain Club, CA
  15. 1.8 8km ESE of Shafter, 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 440 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.