QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

21 km SW of Wilkerson, California

· 3.9 km deep · released about 17 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 91 kmTulare County 103 kmMadera County 107 kmFresno County 107 kmEsmeralda County 108 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
3.9 km below the surface
Felt
no reports yet
Nearest
Mono County, 91 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3537 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 17 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 5.8 900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 640,000× the energy of this one
  3. Around the size people start to feel M 3.0 57× the energy of this one
  4. This earthquake M 1.8 about 17 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 37.1360, -118.5510. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 91 km (57 mi) SSE of here earthquakes near Mono County
Tulare County, CA 103 km (64 mi) NNE of here earthquakes near Tulare County
Madera County, CA 107 km (66 mi) E of here earthquakes near Madera County
Fresno County, CA 107 km (66 mi) ENE of here earthquakes near Fresno County
Esmeralda County, NV 108 km (67 mi) SW of here earthquakes near Esmeralda County
Inyo County, CA 120 km (75 mi) WNW of here earthquakes near Inyo County

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

Aftershocks so far

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

  1. 2.7 8 km ENE of Swall Meadows, California
  2. 2.1 7 km SSW of Wilkerson, California
  3. 1.9 14 km WSW of Aspen Springs, California
  4. 2.3 15 km SW of Aspen Springs, California
  5. 1.6 7 km SSW of Wilkerson, California
  6. 1.7 19 km SW of Aspen Springs, California
  7. 1.7 19 km SW of Aspen Springs, California
  8. 1.6 24 km E of Bishop, California
  9. 1.6 2 km E of Bishop, California
  10. 1.8 2 km E of Bishop, California
  11. 1.5 2 km E of Bishop, California
  12. 1.7 8 km ENE of Wilkerson, California
  13. 2.7 7 km ENE of Wilkerson, California
  14. 1.8 7 km NE of Wilkerson, California
  15. 1.6 7 km NE of Wilkerson, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.8 on 2016-02-16 — it released about 26,000 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.