QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6mh

11km S of Mammoth Lakes, CA

· 12 km deep · released about 240 lb of TNT

10 km30 km60 km120 km N Mono County 43 kmMadera County 77 kmMariposa County 81 kmTuolumne County 101 kmFresno County 105 kmMineral County 120 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 2.6 (mh)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Mono County, 43 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1862 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 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 37.5418, -118.9915. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 43 km (27 mi) SSW of here earthquakes near Mono County
Madera County, CA 77 km (48 mi) ENE of here earthquakes near Madera County
Mariposa County, CA 81 km (50 mi) E of here earthquakes near Mariposa County
Tuolumne County, CA 101 km (63 mi) ESE of here earthquakes near Tuolumne County
Fresno County, CA 105 km (65 mi) NE of here earthquakes near Fresno County
Mineral County, NV 120 km (74 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

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

  1. 1.6 9km W of Toms Place, CA
  2. 1.9 7km E of Mammoth Lakes, CA
  3. 2.1 7km E of Mammoth Lakes, CA
  4. 2.8 10km SW of Toms Place, CA
  5. 1.5 7km NW of West Bishop, CA
  6. 2.1 12km W of Toms Place, CA
  7. 2.0 12km W of Toms Place, CA
  8. 1.5 16km ESE of Yosemite Valley, CA
  9. 2.7 6km NE of Round Valley, CA
  10. 1.8 20km ESE of Yosemite Valley, CA
  11. 1.5 17km SSE of Mammoth Lakes, CA
  12. 1.8 16km SE of Mammoth Lakes, CA
  13. 2.1 9km WSW of Toms Place, CA
  14. 1.9 16km SW of Toms Place, CA
  15. 1.7 16km 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.4 on 2020-02-01 — it released about 520 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.