QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

2km SW of Shaver Lake, CA

· 42 km deep · released about 37 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Madera County 39 kmFresno County 47 kmMariposa County 74 kmMono County 100 kmTulare County 108 kmTuolumne County 117 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
42 km below the surface
Felt
no reports yet
Nearest
Madera County, 39 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2229 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 37 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 5.8 410,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 290,000× the energy of this one
  3. Around the size people start to feel M 3.0 26× the energy of this one
  4. This earthquake M 2.1 about 37 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 37.0930, -119.3308. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Madera County, CA 39 km (24 mi) ESE of here earthquakes near Madera County
Fresno County, CA 47 km (29 mi) NE of here earthquakes near Fresno County
Mariposa County, CA 74 km (46 mi) SE of here earthquakes near Mariposa County
Mono County, CA 100 km (62 mi) SSW of here earthquakes near Mono County
Tulare County, CA 108 km (67 mi) NNW of here earthquakes near Tulare County
Tuolumne County, CA 117 km (73 mi) SSE of here earthquakes near Tuolumne County

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

Aftershocks so far

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

  1. 2.4 7km SE of North Fork, CA
  2. 1.9 18km SSE of Shaver Lake, CA
  3. 2.8 18km SSE of Shaver Lake, CA
  4. 2.3 24km NNE of Squaw Valley, CA
  5. 1.8 26km NE of Oakhurst, CA
  6. 1.5 1km E of Yosemite Lakes, CA
  7. 2.2 23km S of Mammoth Lakes, CA
  8. 1.5 23km S of Mammoth Lakes, CA
  9. 1.6 9km SSE of Yosemite Lakes, CA
  10. 2.0 9km SW of Yosemite Lakes, CA
  11. 1.8 12km W of Auberry, CA
  12. 1.9 29km ENE of North Fork, CA
  13. 1.6 4km N of Shaver Lake, CA
  14. 2.2 6km WNW of Yosemite Lakes, CA
  15. 1.6 4km WSW of Auberry, 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.