QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

24 km SE of Yosemite Valley, California

· 2.6 km deep · released about 1,400 lb of TNT

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10 km30 km60 km120 km N Mariposa County 48 kmMadera County 55 kmMono County 56 kmTuolumne County 71 kmFresno County 96 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 3.1 (ml)
Depth
2.6 km below the surface
Felt
no reports yet
Nearest
Mariposa County, 48 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3516 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 1,400 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 230,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 10,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,400× the energy of this one
  4. This earthquake M 3.1 about 1,400 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.5× 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 37.5952, -119.3630. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mariposa County, CA 48 km (30 mi) E of here earthquakes near Mariposa County
Madera County, CA 55 km (34 mi) NE of here earthquakes near Madera County
Mono County, CA 56 km (35 mi) SW of here earthquakes near Mono County
Tuolumne County, CA 71 km (44 mi) SE of here earthquakes near Tuolumne County
Fresno County, CA 96 km (60 mi) NNE of here earthquakes near Fresno County
Alpine County, CA 120 km (75 mi) SSE of here earthquakes near Alpine County

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

Aftershocks so far

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

  1. 2.0 13 km WSW of Aspen Springs, California
  2. 2.0 13 km WSW of Aspen Springs, California
  3. 1.5 8 km SSE of Fish Camp, California
  4. 1.9 2 km ESE of Mammoth Lakes, California
  5. 2.8 28 km E of Fish Camp, California
  6. 1.6 3 km E of Mammoth Lakes, California
  7. 1.6 3 km E of Mammoth Lakes, California
  8. 2.1 California-Nevada border region
  9. 2.1 3 km E of Mammoth Lakes, California
  10. 2.5 3 km E of Mammoth Lakes, California
  11. 1.9 9 km SSW of Mammoth Lakes, California
  12. 1.5 10 km W of Aspen Springs, California
  13. 1.8 11 km W of Aspen Springs, California
  14. 1.8 4 km E of Mammoth Lakes, CA
  15. 1.6 5 km SSE of Fish Camp, California

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.

On USGS

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