QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

39 km E of Lee Vining, CA

· 14 km deep · released about 1.3 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 17 kmMineral County 68 kmEsmeralda County 94 kmTuolumne County 113 kmMariposa County 116 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 3.3 (ml)
Depth
14 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Mono County, 17 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 179 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 1.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 130,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 5,800× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,100× the energy of this one
  4. This earthquake M 3.3 about 1.3 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.7× 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 37.9438, -118.6797. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 17 km (11 mi) E of here earthquakes near Mono County
Mineral County, NV 68 km (42 mi) SSW of here earthquakes near Mineral County
Esmeralda County, NV 94 km (58 mi) WNW of here earthquakes near Esmeralda County
Tuolumne County, CA 113 km (70 mi) E of here earthquakes near Tuolumne County
Mariposa County, CA 116 km (72 mi) ENE of here earthquakes near Mariposa County
Alpine County, CA 123 km (77 mi) SE of here earthquakes near Alpine County

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

Aftershocks so far

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

  1. 1.7 39 km SSW of Qualeys Camp, NV
  2. 2.4 39 km SSW of Qualeys Camp, NV
  3. 1.9 7 km SSW of Mammoth Lakes, CA
  4. 1.7 28 km SSW of Mina, Nevada
  5. 2.6 14 km WSW of Toms Place, CA
  6. 1.6 15 km SE of Mammoth Lakes, CA
  7. 1.6 14 km WSW of Toms Place, CA
  8. 1.6 25 km SSW of Mina, Nevada
  9. 1.9 35 km NNE of Benton, California
  10. 1.7 11 km W of Toms Place, CA
  11. 1.9 31 km SSW of Mina, Nevada
  12. 1.7 28 km SSW of Mina, Nevada
  13. 2.6 14 km WSW of Toms Place, CA
  14. 1.6 15 km ESE of Bridgeport, California
  15. 1.9 29 km SE of Bodie, 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 5.2 on 2020-04-11 — it released about 840 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.