QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

13km WSW of Toms Place, CA

· 2.2 km deep · released about 44 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 44 kmMadera County 89 kmMariposa County 96 kmEsmeralda County 108 kmFresno County 113 kmTuolumne County 114 kmMineral 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 2.1 (md)
Depth
2.2 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Mono County, 44 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1512 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 44 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 5.8 340,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 240,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 44 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 37.5268, -118.8225. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 44 km (27 mi) S of here earthquakes near Mono County
Madera County, CA 89 km (55 mi) ENE of here earthquakes near Madera County
Mariposa County, CA 96 km (60 mi) E of here earthquakes near Mariposa County
Esmeralda County, NV 108 km (67 mi) WSW of here earthquakes near Esmeralda County
Fresno County, CA 113 km (70 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

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

  1. 1.8 13 km S of Mammoth Lakes, California
  2. 2.4 13 km S of Mammoth Lakes, California
  3. 2.1 14 km SW of Aspen Springs, California
  4. 1.8 14 km SW of Aspen Springs, California
  5. 1.8 11 km WSW of Aspen Springs, California
  6. 1.5 16 km WSW of Aspen Springs, California
  7. 1.9 13 km SW of Aspen Springs, California
  8. 1.5 11 km W of Aspen Springs, California
  9. 1.6 16 km WSW of Round Valley, California
  10. 1.6 14km SE of Mammoth Lakes, CA
  11. 1.5 13km WSW of Toms Place, CA
  12. 1.6 13km WSW of Toms Place, CA
  13. 1.5 0 km NNE of Dixon Lane-Meadow Creek, California
  14. 1.9 12km WSW of Toms Place, CA
  15. 1.7 11 km WSW of Aspen Springs, California

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.