QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

6km ENE of Mammoth Lakes, CA

· 2.7 km deep · released about 750 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 29 kmMariposa County 89 kmMadera County 89 kmTuolumne County 101 kmMineral County 105 kmEsmeralda County 113 kmFresno County 119 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 2.9 (md)
Depth
2.7 km below the surface
Felt
11 reports · strongest reported intensity III
Nearest
Mono County, 29 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2902 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 11 people have reported feeling it to USGS.

How big was it?

This earthquake released about 750 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 20,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 14,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.3× the energy of this one
  4. This earthquake M 2.9 about 750 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 37.6545, -118.9090. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 29 km (18 mi) S of here earthquakes near Mono County
Mariposa County, CA 89 km (55 mi) E of here earthquakes near Mariposa County
Madera County, CA 89 km (55 mi) NE of here earthquakes near Madera County
Tuolumne County, CA 101 km (63 mi) ESE of here earthquakes near Tuolumne County
Mineral County, NV 105 km (65 mi) SSW of here earthquakes near Mineral County
Esmeralda County, NV 113 km (70 mi) W of here earthquakes near Esmeralda County

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

Aftershocks so far

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

  1. 1.7 10km WSW of West Bishop, CA
  2. 1.6 17km ENE of Lee Vining, CA
  3. 2.0 38km N of Toms Place, CA
  4. 2.3 13km SE of Mammoth Lakes, CA
  5. 1.9 7km S of Toms Place, CA
  6. 1.6 6km WNW of West Bishop, CA
  7. 1.6 16km WSW of Toms Place, CA
  8. 2.3 13km WSW of Toms Place, CA
  9. 1.6 12km ENE of Mammoth Lakes, CA
  10. 1.6 3km NW of Dixon Lane-Meadow Creek, CA
  11. 1.5 13km SE of Mammoth Lakes, CA
  12. 1.7 7km SSW of Round Valley, CA
  13. 1.6 11km ENE of Mammoth Lakes, CA
  14. 1.7 14km SSE of Mammoth Lakes, CA
  15. 2.9 13km SW of Toms Place, 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.