QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

14km NW of Lee Vining, CA

· 7.5 km deep · released about 420 lb of TNT

10 km30 km60 km120 km N Mono County 35 kmTuolumne County 65 kmAlpine County 80 kmMariposa County 80 kmMineral County 87 kmDouglas County 100 kmMadera County 105 kmLyon County 108 kmCalaveras County 117 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 2.8 (md)
Depth
7.5 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Mono County, 35 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1528 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 420 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 36,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 26,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.3× the energy of this one
  4. This earthquake M 2.8 about 420 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 38.0553, -119.2275. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 35 km (21 mi) WNW of here earthquakes near Mono County
Tuolumne County, CA 65 km (40 mi) E of here earthquakes near Tuolumne County
Alpine County, CA 80 km (50 mi) SE of here earthquakes near Alpine County
Mariposa County, CA 80 km (50 mi) NE of here earthquakes near Mariposa County
Mineral County, NV 87 km (54 mi) SW of here earthquakes near Mineral County
Douglas County, NV 100 km (62 mi) SSE of here earthquakes near Douglas County

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

Aftershocks so far

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

  1. 1.7 6 km ESE of Bridgeport, California
  2. 2.5 15km ESE of Yosemite Valley, CA
  3. 1.6 18km ESE of Yosemite Valley, CA
  4. 2.2 7km WNW of Bridgeport, CA
  5. 1.7 17km ESE of Yosemite Valley, CA
  6. 1.6 29 km ENE of Bridgeport, California
  7. 1.8 36km E of Lee Vining, CA
  8. 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 18,000 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.