QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

14km SE of Mammoth Lakes, CA

· 6.3 km deep · released about 200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 41 kmMadera County 87 kmMariposa County 93 kmTuolumne County 110 kmEsmeralda County 111 kmFresno County 112 kmMineral County 115 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
6.3 km below the surface
Felt
no reports yet
Nearest
Mono County, 41 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1810 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 200 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 75,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 53,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.7× the energy of this one
  4. This earthquake M 2.5 about 200 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 37.5480, -118.8610. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 41 km (25 mi) S of here earthquakes near Mono County
Madera County, CA 87 km (54 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 110 km (69 mi) ESE of here earthquakes near Tuolumne County
Esmeralda County, NV 111 km (69 mi) WSW of here earthquakes near Esmeralda County
Fresno County, CA 112 km (70 mi) NE of here earthquakes near Fresno 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 20km ESE of Yosemite Valley, CA
  2. 1.5 17km SSE of Mammoth Lakes, CA
  3. 1.8 16km SE of Mammoth Lakes, CA
  4. 1.7 38km E of Lee Vining, CA
  5. 2.1 9km WSW of Toms Place, CA
  6. 1.9 16km SW of Toms Place, CA
  7. 1.7 16km SW of Toms Place, CA
  8. 1.8 19 km NW of Benton, California
  9. 2.3 13km WNW of Round Valley, CA
  10. 1.9 3km ENE of Mammoth Lakes, CA
  11. 1.6 3km ENE of Mammoth Lakes, CA
  12. 1.5 12km W of Toms Place, CA
  13. 1.8 28km NE of Oakhurst, CA
  14. 1.7 41km NNE of Toms Place, CA
  15. 1.5 27km W 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 4.4 on 2020-02-01 — it released about 620 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.