QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

15km ESE of Yosemite Valley, CA

· 2.3 km deep · released about 12 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mariposa County 44 kmMono County 55 kmMadera County 60 kmTuolumne County 60 kmFresno County 104 kmAlpine County 109 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 1.7 (md)
Depth
2.3 km below the surface
Felt
no reports yet
Nearest
Mariposa County, 44 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2708 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 12 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 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 870,000× the energy of this one
  3. Around the size people start to feel M 3.0 78× the energy of this one
  4. This earthquake M 1.7 about 12 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 37.6820, -119.4265. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mariposa County, CA 44 km (28 mi) ENE of here earthquakes near Mariposa County
Mono County, CA 55 km (34 mi) WSW of here earthquakes near Mono County
Madera County, CA 60 km (37 mi) NNE of here earthquakes near Madera County
Tuolumne County, CA 60 km (38 mi) SE of here earthquakes near Tuolumne County
Fresno County, CA 104 km (65 mi) N of here earthquakes near Fresno County
Alpine County, CA 109 km (68 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

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

  1. 1.9 30km SE of Yosemite Valley, CA
  2. 1.7 9km ENE of Mammoth Lakes, CA
  3. 1.7 2km S of Mammoth Lakes, CA
  4. 1.7 23km NE of North Fork, CA
  5. 1.5 4km ESE of Mammoth Lakes, CA
  6. 2.3 11km SE of Mammoth Lakes, CA
  7. 1.7 5km ESE of Mammoth Lakes, CA
  8. 1.8 5km ESE of Mammoth Lakes, CA
  9. 1.6 5km ESE of Mammoth Lakes, CA
  10. 1.6 22km NE of Ahwahnee, CA
  11. 2.3 9km NNE of Oakhurst, CA
  12. 1.7 22km SSW of Mammoth Lakes, CA
  13. 1.6 7km SSE of Mammoth Lakes, CA
  14. 1.5 1km E of Mammoth Lakes, CA
  15. 1.5 4km 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.