QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

15km ESE of Yosemite Valley, CA

· 16 km deep · released about 290 lb of TNT

10 km30 km60 km120 km N Mariposa County 44 kmMono County 56 kmMadera County 58 kmTuolumne County 61 kmFresno County 103 kmAlpine County 111 kmCalaveras County 114 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 2.7 (md)
Depth
16 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Mariposa County, 44 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1422 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 290 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 51,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 36,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.2× the energy of this one
  4. This earthquake M 2.7 about 290 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 37.6675, -119.4313. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mariposa County, CA 44 km (27 mi) ENE of here earthquakes near Mariposa County
Mono County, CA 56 km (35 mi) WSW of here earthquakes near Mono County
Madera County, CA 58 km (36 mi) NNE of here earthquakes near Madera County
Tuolumne County, CA 61 km (38 mi) SE of here earthquakes near Tuolumne County
Fresno County, CA 103 km (64 mi) N of here earthquakes near Fresno County
Alpine County, CA 111 km (69 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

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

  1. 2.1 9km SSE of Mammoth Lakes, CA
  2. 1.7 22km SSE of Yosemite Valley, CA
  3. 2.4 21km ESE of Yosemite Valley, CA
  4. 1.7 9km SSE of Mammoth Lakes, CA
  5. 1.7 4km WNW of Mammoth Lakes, CA
  6. 1.8 16km SE of Yosemite Valley, CA
  7. 1.8 14km SE of Yosemite Valley, CA
  8. 1.8 28km NE of Oakhurst, CA
  9. 1.9 28km NE of Oakhurst, CA
  10. 1.6 10km SSE of Mammoth Lakes, CA
  11. 1.6 25km SSW of Mammoth Lakes, CA
  12. 2.6 20km ESE of Yosemite Valley, CA
  13. 2.2 19km ESE of Yosemite Valley, CA
  14. 1.8 19km ESE of Yosemite Valley, CA
  15. 1.6 21km ESE of Yosemite Valley, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.