QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

12 km SSE of Yosemite Valley, California

· 19 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mariposa County 34 kmMadera County 51 kmTuolumne County 57 kmMono County 66 kmFresno County 97 kmCalaveras County 109 kmAlpine County 112 kmMerced 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 1.7 (md)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Mariposa County, 34 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3302 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 970,000× the energy of this one
  3. Around the size people start to feel M 3.0 86× the energy of this one
  4. This earthquake M 1.7 about 11 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 37.6323, -119.5357. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mariposa County, CA 34 km (21 mi) E of here earthquakes near Mariposa County
Madera County, CA 51 km (31 mi) NNE of here earthquakes near Madera County
Tuolumne County, CA 57 km (36 mi) SE of here earthquakes near Tuolumne County
Mono County, CA 66 km (41 mi) WSW of here earthquakes near Mono County
Fresno County, CA 97 km (61 mi) N of here earthquakes near Fresno County
Calaveras County, CA 109 km (68 mi) SE of here earthquakes near Calaveras County

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

Aftershocks so far

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

  1. 2.4 11km NNW of Yosemite Lakes, CA
  2. 1.6 5km W of Mammoth Lakes, CA
  3. 1.6 25km ESE of Yosemite Valley, CA
  4. 2.1 20km SE of Yosemite Valley, CA
  5. 2.4 20km ESE of Yosemite Valley, CA
  6. 2.2 10km E of North Fork, CA
  7. 1.7 20km S of Mammoth Lakes, CA
  8. 2.0 13km NW of Yosemite Lakes, CA
  9. 2.6 10km NNW of Yosemite Lakes, CA
  10. 1.9 8km SSW of Bootjack, CA
  11. 1.9 4km WNW of Mammoth Lakes, CA
  12. 1.8 4km W of Mammoth Lakes, CA
  13. 2.1 2km SSW of Mammoth Lakes, CA
  14. 2.0 21km SE of Yosemite Valley, CA
  15. 1.9 5km W 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.

On USGS

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