QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

28 km ENE of Bridgeport, California

· 9.3 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mineral County 48 kmMono County 48 kmLyon County 79 kmAlpine County 82 kmDouglas County 86 kmTuolumne County 98 kmCarson City 114 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 2.4 (ml)
Depth
9.3 km below the surface
Felt
no reports yet
Nearest
Mineral County, 48 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1640 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 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 38.3483, -118.9237. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mineral County, NV 48 km (30 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 82 km (51 mi) ESE of here earthquakes near Alpine County
Douglas County, NV 86 km (53 mi) SE of here earthquakes near Douglas County
Tuolumne County, CA 98 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

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

  1. 1.8 18km NW of Bridgeport, CA
  2. 1.8 17km SSE of Walker, CA
  3. 3.0 6km WNW of Bodie, CA
  4. 1.7 18km SSE of Bodie, CA
  5. 2.3 17km SSE of Bodie, CA
  6. 1.9 20km SE of Bodie, CA
  7. 2.1 34km SSW of Qualeys Camp, NV
  8. 1.8 28 km NNW of Benton, California
  9. 2.8 6km WNW of Bodie, CA
  10. 1.7 6 km ESE of Bridgeport, California
  11. 2.2 7km WNW of Bridgeport, CA
  12. 1.5 5 km SSE of Walker, California
  13. 1.6 29 km ENE of Bridgeport, California
  14. 1.8 36km E of Lee Vining, CA
  15. 1.8 36km E of Lee Vining, CA

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 63,000 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.