QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

40km NNE of Toms Place, CA

· 8.3 km deep · released about 5.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 28 kmMineral County 69 kmEsmeralda County 82 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
8.3 km below the surface
Felt
no reports yet
Nearest
Mono County, 28 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1950 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 5.6 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 2,700,000× 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 5.6 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 37.9032, -118.5510. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 28 km (18 mi) E of here earthquakes near Mono County
Mineral County, NV 69 km (43 mi) S of here earthquakes near Mineral County
Esmeralda County, NV 82 km (51 mi) W of here earthquakes near Esmeralda County
Mariposa County, CA 125 km (78 mi) ENE of here earthquakes near Mariposa County
Madera County, CA 131 km (81 mi) NE of here earthquakes near Madera County
Alpine County, CA 135 km (84 mi) SE of here earthquakes near Alpine County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

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

  1. 2.7 10km WSW of Toms Place, CA
  2. 1.8 14km WSW of Toms Place, CA
  3. 1.5 14km SE of Mammoth Lakes, CA
  4. 1.6 41km NNE of Toms Place, CA
  5. 1.9 14km SE of Mammoth Lakes, CA
  6. 1.8 11km SW of Toms Place, CA
  7. 2.3 40km NNE of Toms Place, CA
  8. 1.6 38km NNE of Toms Place, CA
  9. 2.2 26 km S of Mina, Nevada
  10. 1.5 28km SE of Bodie, CA
  11. 1.8 38km NNE of Toms Place, CA
  12. 1.9 26 km SSW of Mina, Nevada
  13. 1.6 13km WSW of Toms Place, CA
  14. 1.5 33 km E of Mono City, California
  15. 2.5 13km WSW 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 5.2 on 2020-04-11 — it released about 390,000 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.