QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

9 km W of Aspen Springs, California

· -0.6 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 40 kmMadera County 91 kmMariposa County 96 kmEsmeralda County 107 kmMineral County 112 kmTuolumne County 113 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 1.8 (md)
Depth
-0.6 km below the surface
Felt
no reports yet
Nearest
Mono County, 40 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3435 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 5.7 760,000× the energy of this one
  3. Around the size people start to feel M 3.0 68× 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 37.5607, -118.8183. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 40 km (25 mi) S of here earthquakes near Mono County
Madera County, CA 91 km (57 mi) ENE of here earthquakes near Madera County
Mariposa County, CA 96 km (60 mi) E of here earthquakes near Mariposa County
Esmeralda County, NV 107 km (67 mi) WSW of here earthquakes near Esmeralda County
Mineral County, NV 112 km (70 mi) SSW of here earthquakes near Mineral County
Tuolumne County, CA 113 km (70 mi) ESE of here earthquakes near Tuolumne County

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

Aftershocks so far

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

  1. 1.8 10 km W of Aspen Springs, California
  2. 2.0 11 km SSW of Mammoth Lakes, California
  3. 2.2 10 km W of Aspen Springs, California
  4. 2.0 12 km W of Aspen Springs, California
  5. 2.5 10 km W of Aspen Springs, California
  6. 1.7 10 km SSW of Mammoth Lakes, California
  7. 1.7 11 km W of Aspen Springs, California
  8. 1.7 10 km NE of Mesa, California
  9. 1.6 10 km W of Aspen Springs, California
  10. 2.2 26 km WSW of Wilkerson, California
  11. 1.6 11 km W of Aspen Springs, California
  12. 1.6 11 km W of Aspen Springs, California
  13. 1.9 11 km WNW of Aspen Springs, California
  14. 2.3 22 km NW of Benton, California
  15. 2.3 22 km NW of Benton, California

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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.