QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9mh

19km NNW of Toms Place, CA

· 13 km deep · released about 680 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 24 kmMineral County 93 kmEsmeralda County 98 kmMariposa County 104 kmMadera County 106 kmTuolumne County 112 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 (mh)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Mono County, 24 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2126 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 680 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 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 37.7245, -118.7403. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 24 km (15 mi) SSE of here earthquakes near Mono County
Mineral County, NV 93 km (57 mi) SSW of here earthquakes near Mineral County
Esmeralda County, NV 98 km (61 mi) W of here earthquakes near Esmeralda County
Mariposa County, CA 104 km (65 mi) E of here earthquakes near Mariposa County
Madera County, CA 106 km (66 mi) ENE of here earthquakes near Madera County
Tuolumne County, CA 112 km (70 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

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

  1. 2.4 5km SW of Round Valley, CA
  2. 2.0 3km E of Mammoth Lakes, CA
  3. 1.8 16km WSW of Toms Place, CA
  4. 1.7 16km WSW of Toms Place, CA
  5. 2.5 9km E of Mammoth Lakes, CA
  6. 1.7 7 km SE of Mammoth Lakes, California
  7. 1.8 9km E of Mammoth Lakes, CA
  8. 1.9 9km E of Mammoth Lakes, CA
  9. 1.9 9km E of Mammoth Lakes, CA
  10. 2.0 28km SE of Bodie, CA
  11. 1.7 8km E of Mammoth Lakes, CA
  12. 1.5 12km WSW of Toms Place, CA
  13. 2.8 18km SW of Toms Place, CA
  14. 2.2 28km SE of Bodie, CA
  15. 1.9 3km E 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.2 on 2020-04-11 — it released about 3,200 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.