QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

21km ENE of Toms Place, CA

· 6.6 km deep · released about 14 lb of TNT

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10 km30 km60 km120 km N Mono County 50 kmEsmeralda County 75 kmMineral County 100 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 1.8 (md)
Depth
6.6 km below the surface
Felt
no reports yet
Nearest
Mono County, 50 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3000 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 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× the energy of this one
  4. This earthquake M 1.8 about 14 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 37.6147, -118.4548. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 50 km (31 mi) SE of here earthquakes near Mono County
Esmeralda County, NV 75 km (46 mi) WSW of here earthquakes near Esmeralda County
Mineral County, NV 100 km (62 mi) S of here earthquakes near Mineral County
Madera County, CA 123 km (76 mi) ENE of here earthquakes near Madera County
Fresno County, CA 143 km (89 mi) NE of here earthquakes near Fresno County
Inyo County, CA 150 km (93 mi) NW of here earthquakes near Inyo 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. 1.8 12 km SW of Aspen Springs, California
  2. 2.4 15km SW of Toms Place, CA
  3. 1.6 16km SW of Toms Place, CA
  4. 2.4 14km W of Toms Place, CA
  5. 1.7 15km WSW of Toms Place, CA
  6. 1.8 12 km SW of Aspen Springs, California
  7. 2.0 13km WSW of Toms Place, CA
  8. 1.8 16km SW of Toms Place, CA
  9. 2.4 12 km SW of Aspen Springs, California
  10. 1.8 11 km W of Aspen Springs, California
  11. 1.9 16 km WSW of Aspen Springs, California
  12. 1.7 15km SW of Toms Place, CA
  13. 2.4 14km SE of Mammoth Lakes, CA
  14. 2.1 13km WSW of Toms Place, CA
  15. 1.7 15km 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 4.8 on 2016-02-16 — it released about 32,000 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.