QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

12km N of Yosemite Village, CA

· 16 km deep · released about 13 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tuolumne County 38 kmMariposa County 42 kmMono County 63 kmMadera County 73 kmAlpine County 87 kmCalaveras County 93 kmAmador County 114 kmDouglas County 117 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 1.8 (md)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Tuolumne County, 38 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1882 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 13 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 840,000× the energy of this one
  3. Around the size people start to feel M 3.0 75× the energy of this one
  4. This earthquake M 1.8 about 13 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 37.8542, -119.5880. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tuolumne County, CA 38 km (24 mi) ESE of here earthquakes near Tuolumne County
Mariposa County, CA 42 km (26 mi) NE of here earthquakes near Mariposa County
Mono County, CA 63 km (39 mi) W of here earthquakes near Mono County
Madera County, CA 73 km (45 mi) N of here earthquakes near Madera County
Alpine County, CA 87 km (54 mi) SSE of here earthquakes near Alpine County
Calaveras County, CA 93 km (58 mi) ESE of here earthquakes near Calaveras County

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

Aftershocks so far

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

  1. 1.7 11km ENE of Midpines, CA
  2. 1.9 14km ENE of Midpines, CA
  3. 1.9 16km ENE of Midpines, CA
  4. 1.8 8km NE of Ahwahnee, CA
  5. 1.7 17km ESE of Yosemite Valley, CA
  6. 2.8 14km NW of Lee Vining, CA
  7. 2.1 24km NE of Hetch Hetchy Reservoir, CA
  8. 2.6 10km WSW of Bridgeport, CA
  9. 1.7 9km ENE of Midpines, CA
  10. 2.0 13km ESE of Yosemite Valley, CA
  11. 1.7 29km SE of Yosemite Valley, CA
  12. 1.6 30km SE of Yosemite Valley, CA
  13. 1.6 19km SE of Yosemite Valley, CA
  14. 1.8 16km ESE of Yosemite Valley, CA
  15. 1.6 12km E 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.