QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

22 km ESE of Yosemite Valley, CA

· 12 km deep · released about 5.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 50 kmMariposa County 50 kmMadera County 62 kmTuolumne County 67 kmFresno County 104 kmAlpine County 113 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 1.5 (md)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Mono County, 50 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 909 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 5.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.6 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 37.6683, -119.3513. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 50 km (31 mi) WSW of here earthquakes near Mono County
Mariposa County, CA 50 km (31 mi) ENE of here earthquakes near Mariposa County
Madera County, CA 62 km (38 mi) NE of here earthquakes near Madera County
Tuolumne County, CA 67 km (41 mi) SE of here earthquakes near Tuolumne County
Fresno County, CA 104 km (65 mi) NNE of here earthquakes near Fresno County
Alpine County, CA 113 km (70 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

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

  1. 2.7 9 km SE of Yosemite Valley, CA
  2. 1.8 9 km ESE of North Fork, CA
  3. 1.9 17 km N of Mammoth Lakes, CA
  4. 2.2 17 km N of Mammoth Lakes, CA
  5. 1.6 13 km SSE of Mammoth Lakes, CA
  6. 2.0 10 km ESE of Mammoth Lakes, CA
  7. 2.4 13 km SE of Mammoth Lakes, CA
  8. 1.8 10 km ESE of Mammoth Lakes, CA
  9. 2.2 18 km W of Toms Place, CA
  10. 2.0 23 km SE of Yosemite Valley, CA
  11. 2.1 27 km SSW of Mammoth Lakes, CA
  12. 2.5 13 km SSE of Mammoth Lakes, CA
  13. 2.2 28 km ENE of Oakhurst, CA
  14. 1.7 15 km WSW of Toms Place, CA
  15. 1.7 21 km SSE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.4 on 2020-02-01 — it released about 22,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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