QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

13km ESE of Mammoth Lakes, CA

· 3.8 km deep · released about 5.7 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 37 kmMadera County 90 kmMariposa County 94 kmTuolumne County 109 kmEsmeralda County 109 kmMineral County 110 kmFresno County 116 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
3.8 km below the surface
Felt
no reports yet
Nearest
Mono County, 37 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1300 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 5.7 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 2,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.7 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 37.5847, -118.8507. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 37 km (23 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 94 km (58 mi) E of here earthquakes near Mariposa County
Tuolumne County, CA 109 km (68 mi) ESE of here earthquakes near Tuolumne County
Esmeralda County, NV 109 km (68 mi) W of here earthquakes near Esmeralda County
Mineral County, NV 110 km (69 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

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

  1. 1.6 13 km SSW of Toms Place, CA
  2. 1.6 15 km WSW of Toms Place, CA
  3. 1.7 11 km WSW of Round Valley, CA
  4. 1.5 11 km W of Toms Place, CA
  5. 2.4 16km NNW of Dixon Lane-Meadow Creek, CA
  6. 2.2 14km WSW of Toms Place, CA
  7. 1.9 4km ENE of Round Valley, CA
  8. 1.9 42km S of Qualeys Camp, NV
  9. 1.7 8km SE of Toms Place, CA
  10. 1.6 5km SSE of Toms Place, CA
  11. 1.6 16km SW of Toms Place, CA
  12. 1.6 1km NNE of Round Valley, CA
  13. 1.9 13km WSW of Toms Place, CA
  14. 1.6 9km WSW of Toms Place, CA
  15. 1.6 15km 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 4.4 on 2020-02-01 — it released about 22,000 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.