QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

13km SSE of Bodie, CA

Yes. A magnitude 2.2 earthquake was recorded 13km SSE of Bodie, CA, at 5:42 pm PDT on 7 October 2021 (00:42 UTC), 23 km deep.

· 23 km deep · released about 58 lb of TNT

10 km30 km60 km120 km N Mono County 23 kmMineral County 64 kmTuolumne County 90 kmAlpine County 94 kmLyon County 103 kmMariposa County 104 kmDouglas County 106 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 2.2 (md)
Depth
23 km below the surface
Felt
no reports yet
Nearest
Mono County, 23 km SSE
Nearest mapped fault
Mono Lake fault, 21 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 1861 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. 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 58 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 260,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 58 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 130,000 times the energy of this one.

Before 2016, the USGS record lists 13 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.0 7 km ENE of Mammoth Lakes, California · 49 km S of this epicentre
  2. 5.9 8 km NNE of Mammoth Lakes, California · 44 km S of this epicentre
  3. 5.8 3 km NE of Mono City, California · 17 km WSW of this epicentre
  4. 5.4 27 km NW of Benton, California · 26 km ESE of this epicentre
  5. 5.3 27 km NW of Benton, California · 27 km ESE 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 38.1140, -118.9382. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mono County, CA 23 km (14 mi) SSE earthquakes near Mono County
Mineral County, NV 64 km (40 mi) NE earthquakes near Mineral County
Tuolumne County, CA 90 km (56 mi) W earthquakes near Tuolumne County
Alpine County, CA 94 km (58 mi) NW earthquakes near Alpine County
Lyon County, NV 103 km (64 mi) NNW earthquakes near Lyon County
Mariposa County, CA 104 km (65 mi) SW earthquakes near Mariposa County

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

Aftershocks so far

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

  1. 1.5 19 km ENE of Mono City, California
  2. 1.7 42km S of Qualeys Camp, NV
  3. 2.0 16km WNW of Bridgeport, CA
  4. 2.6 13 km SW of Hawthorne, Nevada
  5. 1.9 35 km NNW of Benton, California
  6. 1.9 12km SSE of Bodie, CA
  7. 1.7 12km SSE of Bodie, CA
  8. 2.3 13km SSE of Bodie, CA
  9. 1.6 27 km WSW of Hawthorne, Nevada
  10. 1.5 27 km NNW of Benton, California
  11. 2.0 12km SSE of Bodie, CA
  12. 1.8 19 km ENE of Mono City, California
  13. 1.6 38km NNE of Toms Place, CA
  14. 1.5 28km SE of Bodie, CA
  15. 1.6 19 km ENE of Mono City, 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.