QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

9km N of Clovis, CA

· 28 km deep · released about 46 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Fresno County 17 kmMadera County 34 kmMariposa County 77 kmKings County 93 kmMerced County 96 kmTulare County 111 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 2.1 (md)
Depth
28 km below the surface
Felt
no reports yet
Nearest
Fresno County, 17 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2580 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 46 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 330,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 21× the energy of this one
  4. This earthquake M 2.1 about 46 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 36.9050, -119.7017. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fresno County, CA 17 km (10 mi) NNW of here earthquakes near Fresno County
Madera County, CA 34 km (21 mi) S of here earthquakes near Madera County
Mariposa County, CA 77 km (48 mi) SSE of here earthquakes near Mariposa County
Kings County, CA 93 km (58 mi) N of here earthquakes near Kings County
Merced County, CA 96 km (60 mi) ESE of here earthquakes near Merced County
Tulare County, CA 111 km (69 mi) NW of here earthquakes near Tulare County

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

Aftershocks so far

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

  1. 1.6 4km WSW of Auberry, CA
  2. 1.8 3 km NNW of Shaver Lake, California
  3. 1.8 2km NNW of Coarsegold, CA
  4. 2.1 10km NE of Fairmead, CA
  5. 2.1 2km SW of Shaver Lake, CA
  6. 2.0 11km S of Yosemite Lakes, CA
  7. 2.0 6km W of Yosemite Lakes, CA
  8. 2.1 2km NW of North Fork, CA
  9. 1.9 4km NW of Yosemite Lakes, CA
  10. 3.2 5km ESE of Shaver Lake, CA
  11. 2.1 7km SSW of Yosemite Lakes, CA
  12. 1.9 7km N of North Fork, CA
  13. 1.9 6km W of Yosemite Lakes, CA
  14. 1.6 3km NNW of Yosemite Lakes, CA
  15. 2.2 11km W of Squaw Valley, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.