QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

11 km WSW of Aspen Springs, California

· 1.7 km deep · released about 320 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 44 kmMadera County 88 kmMariposa County 95 kmEsmeralda County 110 kmFresno County 111 kmTuolumne County 114 kmMineral 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 2.7 (md)
Depth
1.7 km below the surface
Felt
3 reports · strongest reported intensity II
Nearest
Mono County, 44 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3233 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 320 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 48,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 34,000× the energy of this one
  3. Around the size people start to feel M 3.0 3× the energy of this one
  4. This earthquake M 2.7 about 320 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 37.5175, -118.8347. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 44 km (28 mi) S of here earthquakes near Mono County
Madera County, CA 88 km (55 mi) ENE of here earthquakes near Madera County
Mariposa County, CA 95 km (59 mi) E of here earthquakes near Mariposa County
Esmeralda County, NV 110 km (68 mi) WSW of here earthquakes near Esmeralda County
Fresno County, CA 111 km (69 mi) NE of here earthquakes near Fresno County
Tuolumne County, CA 114 km (71 mi) ESE of here earthquakes near Tuolumne County

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

Aftershocks so far

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

  1. 1.6 14km W of Toms Place, CA
  2. 2.5 14km W of Toms Place, CA
  3. 2.3 14km W of Toms Place, CA
  4. 1.6 17km WSW of Toms Place, CA
  5. 1.8 13km WNW of Toms Place, CA
  6. 1.9 15km SW of Toms Place, CA
  7. 2.1 13km WNW of Toms Place, CA
  8. 1.7 4km ENE of Mammoth Lakes, CA
  9. 1.8 22km S of Mammoth Lakes, CA
  10. 1.6 2km ENE of West Bishop, CA
  11. 1.6 4km ENE of Mammoth Lakes, CA
  12. 1.6 4km ENE of Mammoth Lakes, CA
  13. 1.9 14km W of Toms Place, CA
  14. 1.5 25km ESE of Yosemite Valley, CA
  15. 1.6 12km WNW of Round 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.