QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

12km WNW of Round Valley, CA

· 13 km deep · released about 190 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 53 kmMadera County 94 kmEsmeralda County 103 kmMariposa County 105 kmFresno County 113 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 2.5 (md)
Depth
13 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Mono County, 53 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2649 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 190 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 78,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 55,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.9× the energy of this one
  4. This earthquake M 2.5 about 190 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 37.4538, -118.7290. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 53 km (33 mi) SSE of here earthquakes near Mono County
Madera County, CA 94 km (59 mi) ENE of here earthquakes near Madera County
Esmeralda County, NV 103 km (64 mi) WSW of here earthquakes near Esmeralda County
Mariposa County, CA 105 km (65 mi) E of here earthquakes near Mariposa County
Fresno County, CA 113 km (70 mi) NE of here earthquakes near Fresno County
Mineral County, NV 121 km (75 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

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

  1. 1.7 11km WNW of Toms Place, CA
  2. 1.7 9km WNW of Toms Place, CA
  3. 1.7 4km SE of Mammoth Lakes, CA
  4. 1.8 6km E of Wilkerson, CA
  5. 1.7 24km SW of Toms Place, CA
  6. 1.7 9km ENE of Mammoth Lakes, CA
  7. 1.9 14km ESE of Mammoth Lakes, CA
  8. 1.5 11km WNW of Toms Place, CA
  9. 1.8 7km SSW of Wilkerson, CA
  10. 2.1 35km NNE of Toms Place, CA
  11. 2.2 17km SW of Toms Place, CA
  12. 1.6 14km WSW of Toms Place, CA
  13. 1.7 2km S of Mammoth Lakes, CA
  14. 1.8 10km WSW of Toms Place, CA
  15. 1.8 13km SE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.8 on 2016-02-16 — it released about 2,200 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.