QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

Earthquake near Hawthorne, NV

No earthquake was likely felt in Hawthorne in the 24 hours to 2:11 pm PST (22:11 UTC). The last one was M 3.0, 23 km (14 mi) N, at 12:54 pm PDT on 14 October 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Hawthorne

This page: a magnitude 2.3 earthquake was recorded 33 km (20 mi) south-southwest of Hawthorne, NV, at 4:36 am PDT on 22 September 2021 (11:36 UTC), 8.3 km deep.

USGS: 32 km SSW of Hawthorne, Nevada

4:36 am PDT, Sep 22, 2021 · · 8.3 km deep · released about 85 lb of TNT

10 km30 km60 km120 km N Mono County 39 kmMineral County 41 kmLyon County 95 kmAlpine County 101 kmDouglas County 105 kmEsmeralda County 110 kmTuolumne County 110 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
4:36 am PDT on 22 September 2021 ()
Where
33 km (20 mi) south-southwest of Hawthorne, NV · earthquakes near Hawthorne
Magnitude
M 2.3 (ml)
Depth
8.3 km below the surface
Felt
no reports yet
Nearest
Mono County, 39 km SSW
Nearest mapped fault
Wassuk Range fault, 8 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1875 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 18 km (11 mi) from the epicentre. In Hawthorne, 33 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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.

For this area

The largest earthquake within 50 km since 2016 was M 5.6 on 2016-12-28 — about 89,000 times the energy of this one.

Before 2016, the USGS record lists 20 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.3 The 1934 Excelsior Mountains, Nevada Earthquake · 33 km E of this epicentre
  2. 5.8 3 km NE of Mono City, California · 39 km WSW of this epicentre
  3. 5.6 Excelsior Mountains, Nevada (Foreshock) · 30 km ENE of this epicentre
  4. 5.5 Excelsior Mountains, Nevada (Aftershock) · 30 km ENE of this epicentre
  5. 5.4 Excelsior Mountains, Nevada (Aftershock) · 30 km ENE of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 38.2458, -118.7383. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mono County, CA 39 km (24 mi) SSW earthquakes near Mono County
Mineral County, NV 41 km (26 mi) NE earthquakes near Mineral County
Lyon County, NV 95 km (59 mi) NNW earthquakes near Lyon County
Alpine County, CA 101 km (63 mi) WNW earthquakes near Alpine County
Douglas County, NV 105 km (65 mi) NW earthquakes near Douglas County
Esmeralda County, NV 110 km (68 mi) ESE earthquakes near Esmeralda County

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

Aftershocks so far

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

  1. 2.2 13km SSE of Bodie, CA
  2. 1.6 13km SSE of Bodie, CA
  3. 3.7 13km SSE of Bodie, CA
  4. 1.7 38km E of Lee Vining, CA
  5. 1.6 14km SSE of Bodie, CA
  6. 1.7 14km SSE of Bodie, CA
  7. 1.7 12km SSE of Bodie, CA
  8. 1.8 12km SSE of Bodie, CA
  9. 2.0 42km S of Qualeys Camp, NV
  10. 1.5 12km SSE of Bodie, CA
  11. 1.6 14km SSE of Bodie, CA
  12. 2.2 13km SSE of Bodie, CA
  13. 2.0 13km SSE of Bodie, CA
  14. 1.5 28 km WSW of Hawthorne, Nevada
  15. 1.9 30 km E of Bridgeport, 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.