QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

20km ESE of Yosemite Valley, CA

· 7.9 km deep · released about 250 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mariposa County 47 kmMono County 54 kmMadera County 59 kmTuolumne County 65 kmFresno County 102 kmAlpine County 114 kmCalaveras County 119 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 2.6 (md)
Depth
7.9 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Mariposa County, 47 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1300 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 250 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 61,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 43,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.8× the energy of this one
  4. This earthquake M 2.6 about 250 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 37.6517, -119.3848. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mariposa County, CA 47 km (29 mi) E of here earthquakes near Mariposa County
Mono County, CA 54 km (33 mi) WSW of here earthquakes near Mono County
Madera County, CA 59 km (37 mi) NNE of here earthquakes near Madera County
Tuolumne County, CA 65 km (41 mi) SE of here earthquakes near Tuolumne County
Fresno County, CA 102 km (63 mi) NNE of here earthquakes near Fresno County
Alpine County, CA 114 km (71 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

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

  1. 1.6 14 km W of Toms Place, CA
  2. 1.9 16 km ESE of Yosemite Valley, CA
  3. 1.8 16 km ESE of Yosemite Valley, CA
  4. 1.6 15km SE of Mammoth Lakes, CA
  5. 2.6 4km WNW of Mammoth Lakes, CA
  6. 1.8 13km SE of Mammoth Lakes, CA
  7. 1.7 2km ESE of Mammoth Lakes, CA
  8. 1.8 6km W of Mammoth Lakes, CA
  9. 1.6 18km ESE of Yosemite Valley, CA
  10. 1.7 28km NE of Oakhurst, CA
  11. 1.8 9km SSE of Mammoth Lakes, CA
  12. 2.0 2km WSW of Oakhurst, CA
  13. 1.8 18km S of Mammoth Lakes, CA
  14. 2.8 22km S of Mammoth Lakes, CA
  15. 2.9 22km S of Mammoth Lakes, 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 4.0 on 2020-04-05 — it released about 140 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.