QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

3 km N of Shaver Lake, California

· 31 km deep · released about 17 lb of TNT

10 km30 km60 km120 km N Madera County 39 kmFresno County 51 kmMariposa County 71 kmMono County 95 kmTulare County 112 kmTuolumne 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 1.8 (md)
Depth
31 km below the surface
Felt
no reports yet
Nearest
Madera County, 39 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3516 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 17 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 5.8 870,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 620,000× the energy of this one
  3. Around the size people start to feel M 3.0 55× the energy of this one
  4. This earthquake M 1.8 about 17 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 37.1367, -119.3192. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Madera County, CA 39 km (24 mi) ESE of here earthquakes near Madera County
Fresno County, CA 51 km (32 mi) NE of here earthquakes near Fresno County
Mariposa County, CA 71 km (44 mi) SE of here earthquakes near Mariposa County
Mono County, CA 95 km (59 mi) SSW of here earthquakes near Mono County
Tulare County, CA 112 km (69 mi) NNW of here earthquakes near Tulare County
Tuolumne County, CA 114 km (71 mi) SSE of here earthquakes near Tuolumne County

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

Aftershocks so far

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

  1. 1.8 29 km NE of Bass Lake, California
  2. 2.0 5 km N of Shaver Lake, California
  3. 1.6 26 km SSW of Mammoth Lakes, California
  4. 1.8 25 km SSW of Mammoth Lakes, California
  5. 1.5 25 km SSW of Mammoth Lakes, California
  6. 1.6 23 km NE of Bass Lake, California
  7. 2.0 5 km SSW of Big Creek, California
  8. 2.0 28 km E of Fish Camp, California
  9. 1.6 8 km SSE of Fish Camp, California
  10. 1.8 23 km E of Fish Camp, California
  11. 1.9 3 km SW of Big Creek, California
  12. 2.0 10 km NW of Friant, California
  13. 1.5 3 km WNW of Yosemite Lakes, 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.