QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

10km E of Mammoth Lakes, CA

· 0.1 km deep · released about 6.2 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 32 kmMadera County 90 kmMariposa County 92 kmTuolumne County 106 kmMineral County 107 kmEsmeralda County 110 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 1.5 (md)
Depth
0.1 km below the surface
Felt
no reports yet
Nearest
Mono County, 32 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1553 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 6.2 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.5 about 6.2 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 37.6258, -118.8707. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 32 km (20 mi) S of here earthquakes near Mono County
Madera County, CA 90 km (56 mi) ENE of here earthquakes near Madera County
Mariposa County, CA 92 km (57 mi) E of here earthquakes near Mariposa County
Tuolumne County, CA 106 km (66 mi) ESE of here earthquakes near Tuolumne County
Mineral County, NV 107 km (66 mi) SSW of here earthquakes near Mineral County
Esmeralda County, NV 110 km (69 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

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

  1. 1.9 6km E of Round Valley, CA
  2. 1.8 1km S of Round Valley, CA
  3. 2.1 14km ESE of Mammoth Lakes, CA
  4. 2.0 9km SSE of Mammoth Lakes, CA
  5. 2.1 26km SE of Bodie, CA
  6. 2.8 14km W of Round Valley, CA
  7. 1.5 8km W of Toms Place, CA
  8. 1.6 8km W of Toms Place, CA
  9. 1.6 32km NE of North Fork, CA
  10. 2.1 14km SSE of Mammoth Lakes, CA
  11. 1.5 4km NE of Round Valley, CA
  12. 2.1 1km SW of Round Valley, CA
  13. 2.0 34km SE of Bodie, CA
  14. 1.8 0km WSW of Round Valley, CA
  15. 1.8 9km SSE 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 5.2 on 2020-04-11 — it released about 350,000 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.