QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

13km SE of Mammoth Lakes, CA

· 7.8 km deep · released about 330 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 38 kmMadera County 88 kmMariposa County 93 kmTuolumne County 109 kmEsmeralda County 110 kmMineral County 112 kmFresno County 114 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
7.8 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Mono County, 38 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2623 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 330 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 46,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 33,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.9× the energy of this one
  4. This earthquake M 2.7 about 330 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 37.5705, -118.8585. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 38 km (24 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 93 km (58 mi) E of here earthquakes near Mariposa County
Tuolumne County, CA 109 km (68 mi) ESE of here earthquakes near Tuolumne County
Esmeralda County, NV 110 km (69 mi) WSW of here earthquakes near Esmeralda County
Mineral County, NV 112 km (70 mi) SSW of here earthquakes near Mineral County

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

Aftershocks so far

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

  1. 1.8 4km E of Mammoth Lakes, CA
  2. 1.8 18km WSW of Wilkerson, CA
  3. 2.0 9km E of Mammoth Lakes, CA
  4. 1.9 9km E of Mammoth Lakes, CA
  5. 2.2 9km E of Mammoth Lakes, CA
  6. 2.4 9km ESE of Mammoth Lakes, CA
  7. 2.3 9km E of Mammoth Lakes, CA
  8. 2.2 9km E of Mammoth Lakes, CA
  9. 2.9 9km E of Mammoth Lakes, CA
  10. 1.8 23km SW of Toms Place, CA
  11. 1.9 18km SW of Toms Place, CA
  12. 1.6 13km SW of Toms Place, CA
  13. 1.5 14km WNW of Toms Place, CA
  14. 1.6 14km W of Toms Place, CA
  15. 2.0 3km ENE of Mammoth Lakes, 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.