QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2mw

29 km ENE of Bridgeport, California

· 11 km deep · released about 1,900 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mineral County 47 kmMono County 48 kmLyon County 79 kmAlpine County 83 kmDouglas County 87 kmTuolumne County 99 kmCarson City 115 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 3.2 (mw)
Depth
11 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Mineral County, 47 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 992 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 1,900 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 180,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,600× the energy of this one
  4. This earthquake M 3.2 about 1,900 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 2× more

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 38.3455, -118.9130. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mineral County, NV 47 km (29 mi) WSW of here earthquakes near Mineral County
Mono County, CA 48 km (30 mi) N of here earthquakes near Mono County
Lyon County, NV 79 km (49 mi) SSE of here earthquakes near Lyon County
Alpine County, CA 83 km (52 mi) ESE of here earthquakes near Alpine County
Douglas County, NV 87 km (54 mi) SE of here earthquakes near Douglas County
Tuolumne County, CA 99 km (61 mi) ENE of here earthquakes near Tuolumne County

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

Aftershocks so far

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

  1. 1.5 17 km SSE of Walker, California
  2. 1.6 29 km SSW of Hawthorne, Nevada
  3. 1.6 29 km SW of Hawthorne, Nevada
  4. 2.2 29 km SW of Hawthorne, Nevada
  5. 1.9 30 km SW of Hawthorne, Nevada
  6. 1.7 30 km SW of Hawthorne, Nevada
  7. 1.6 34 km E of Bridgeport, California
  8. 2.7 30 km SE of Bodie, CA
  9. 1.5 6 km N of Bridgeport, California
  10. 1.7 23 km ESE of Hawthorne, Nevada
  11. 1.6 32 km SW of Hawthorne, Nevada
  12. 1.9 30 km SE of Bodie, CA
  13. 1.6 17 km ENE of Lee Vining, CA
  14. 2.1 39 km SSW of Qualeys Camp, NV
  15. 1.6 12 km NNW of Walker Lake, Nevada

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 5.6 on 2016-12-28 — it released about 4,000 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.