QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

9 km E of Buck Meadows, California

· 8.8 km deep · released about 110 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tuolumne County 25 kmMariposa County 25 kmMadera County 68 kmCalaveras County 68 kmAlpine County 93 kmAmador County 94 kmMerced County 95 kmStanislaus County 96 kmMono 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 2.4 (md)
Depth
8.8 km below the surface
Felt
7 reports · strongest reported intensity III
Nearest
Tuolumne County, 25 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3517 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 7 people have reported feeling it to USGS.

How big was it?

This earthquake released about 110 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 95,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.5× the energy of this one
  4. This earthquake M 2.4 about 110 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 37.7967, -119.9575. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tuolumne County, CA 25 km (16 mi) S of here earthquakes near Tuolumne County
Mariposa County, CA 25 km (16 mi) N of here earthquakes near Mariposa County
Madera County, CA 68 km (42 mi) NNW of here earthquakes near Madera County
Calaveras County, CA 68 km (42 mi) SE of here earthquakes near Calaveras County
Alpine County, CA 93 km (58 mi) S of here earthquakes near Alpine County
Amador County, CA 94 km (59 mi) SE of here earthquakes near Amador County

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

Aftershocks so far

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

  1. 1.9 8km SSW of Bootjack, CA
  2. 1.7 10km NE of Ahwahnee, CA
  3. 2.0 14km SSW of Mariposa, CA
  4. 1.6 14km S of Mariposa, CA
  5. 2.9 12km SSW of Bootjack, CA
  6. 2.3 9km NW of Mariposa, CA
  7. 1.6 15km SE of Yosemite Valley, CA
  8. 1.6 16km SSE of Yosemite Valley, CA
  9. 2.1 4 km WNW of Mariposa, California
  10. 2.2 6 km ESE of Coulterville, California
  11. 2.4 11 km ENE of Buck Meadows, California
  12. 1.7 12 km SSE of Yosemite Valley, California
  13. 1.6 5 km SSE of Fish Camp, California
  14. 1.5 15 km SE of Yosemite Valley, California
  15. 1.6 13 km SE of Catheys Valley, 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

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