QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

33km NE of Shaver Lake, CA

· 2.1 km deep · released about 5.9 lb of TNT

10 km30 km60 km120 km N Madera County 61 kmMono County 68 kmMariposa County 78 kmFresno County 81 kmTuolumne County 110 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
2.1 km below the surface
Felt
no reports yet
Nearest
Madera County, 61 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2203 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 5.9 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 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 160× the energy of this one
  4. This earthquake M 1.5 about 5.9 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 37.3275, -119.0818. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Madera County, CA 61 km (38 mi) ENE of here earthquakes near Madera County
Mono County, CA 68 km (42 mi) SSW of here earthquakes near Mono County
Mariposa County, CA 78 km (49 mi) ESE of here earthquakes near Mariposa County
Fresno County, CA 81 km (50 mi) NE of here earthquakes near Fresno County
Tuolumne County, CA 110 km (68 mi) SE of here earthquakes near Tuolumne County

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

Aftershocks so far

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

  1. 2.2 20km SE of Yosemite Valley, CA
  2. 1.6 22km ESE of Yosemite Valley, CA
  3. 1.6 21km SE of Yosemite Valley, CA
  4. 2.0 19km SE of Yosemite Valley, CA
  5. 1.7 20km SE of Yosemite Valley, CA
  6. 2.6 20km SE of Yosemite Valley, CA
  7. 3.1 20km SE of Yosemite Valley, CA
  8. 1.6 20km SE of Yosemite Valley, CA
  9. 2.4 20km ESE of Yosemite Valley, CA
  10. 2.3 18 km SE of Yosemite Valley, California
  11. 1.5 20km SE of Yosemite Valley, CA
  12. 2.2 19km SE of Yosemite Valley, CA
  13. 1.5 20km ESE of Yosemite Valley, CA
  14. 1.8 20km SE of Yosemite Valley, CA
  15. 1.5 22km ESE 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 21,000 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.