QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

22km SSE of Yosemite Valley, CA

· 27 km deep · released about 10 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mariposa County 40 kmMadera County 47 kmMono County 64 kmTuolumne County 68 kmFresno County 91 kmCalaveras County 119 kmMerced 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 1.7 (md)
Depth
27 km below the surface
Felt
no reports yet
Nearest
Mariposa County, 40 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1329 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 10 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 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 92× the energy of this one
  4. This earthquake M 1.7 about 10 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 37.5662, -119.4540. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mariposa County, CA 40 km (25 mi) E of here earthquakes near Mariposa County
Madera County, CA 47 km (29 mi) NNE of here earthquakes near Madera County
Mono County, CA 64 km (40 mi) SW of here earthquakes near Mono County
Tuolumne County, CA 68 km (42 mi) SE of here earthquakes near Tuolumne County
Fresno County, CA 91 km (57 mi) N of here earthquakes near Fresno County
Calaveras County, CA 119 km (74 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

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

  1. 2.3 6 km SE of North Fork, CA
  2. 1.5 20 km SE of Yosemite Valley, CA
  3. 2.1 16 km SE of Yosemite Valley, CA
  4. 1.5 25 km S of Mammoth Lakes, CA
  5. 1.5 14 km SE of Yosemite Valley, CA
  6. 2.7 11 km W of Ahwahnee, CA
  7. 2.0 3 km NNE of Yosemite Valley, CA
  8. 1.7 22 km S of Mammoth Lakes, CA
  9. 1.7 23 km S of Mammoth Lakes, CA
  10. 1.7 16 km ENE of Yosemite Valley, CA
  11. 2.1 16 km ENE of Yosemite Valley, CA
  12. 1.9 7 km NE of Shaver Lake, CA
  13. 1.6 19 km S of Yosemite Valley, CA
  14. 2.1 18 km S of Yosemite Valley, CA
  15. 1.8 3 km SSE 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.