QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

8km ENE of Bridgeport, CA

· 6.8 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 48 kmAlpine County 68 kmMineral County 68 kmTuolumne County 78 kmDouglas County 79 kmLyon County 81 kmMariposa County 104 kmCarson City 109 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 1.7 (md)
Depth
6.8 km below the surface
Felt
no reports yet
Nearest
Mono County, 48 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2585 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 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 89× the energy of this one
  4. This earthquake M 1.7 about 11 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 38.2932, -119.1465. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 48 km (30 mi) NNW of here earthquakes near Mono County
Alpine County, CA 68 km (42 mi) ESE of here earthquakes near Alpine County
Mineral County, NV 68 km (42 mi) WSW of here earthquakes near Mineral County
Tuolumne County, CA 78 km (48 mi) ENE of here earthquakes near Tuolumne County
Douglas County, NV 79 km (49 mi) SSE of here earthquakes near Douglas County
Lyon County, NV 81 km (50 mi) S of here earthquakes near Lyon County

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

Aftershocks so far

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

  1. 1.5 30 km WSW of Hawthorne, Nevada
  2. 2.4 10km N of Lee Vining, CA
  3. 1.6 16km SW of Bodie, CA
  4. 1.7 27 km WSW of Hawthorne, Nevada
  5. 1.6 29 km WSW of Hawthorne, Nevada
  6. 1.8 29 km WSW of Hawthorne, Nevada
  7. 1.6 12 km NNW of Bridgeport, California
  8. 1.6 6 km SE of Walker, California
  9. 1.6 4 km SE of Walker, California
  10. 1.9 6 km SE of Walker, California
  11. 1.8 6 km ESE of Walker, California
  12. 1.9 7km W of Bodie, CA
  13. 1.6 12 km ENE of Bridgeport, California
  14. 2.1 20km SE of Bodie, CA
  15. 1.9 32km 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 710,000 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.