QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

5km SE of Mammoth Lakes, CA

· 5.5 km deep · released about 16 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 35 kmMadera County 84 kmMariposa County 86 kmTuolumne County 101 kmMineral County 111 kmFresno County 113 kmEsmeralda 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
5.5 km below the surface
Felt
no reports yet
Nearest
Mono County, 35 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2957 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 16 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 5.8 930,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 660,000× the energy of this one
  3. Around the size people start to feel M 3.0 59× the energy of this one
  4. This earthquake M 1.8 about 16 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 37.6032, -118.9382. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 35 km (22 mi) S of here earthquakes near Mono County
Madera County, CA 84 km (52 mi) ENE of here earthquakes near Madera County
Mariposa County, CA 86 km (53 mi) E of here earthquakes near Mariposa County
Tuolumne County, CA 101 km (63 mi) ESE of here earthquakes near Tuolumne County
Mineral County, NV 111 km (69 mi) SSW of here earthquakes near Mineral County
Fresno County, CA 113 km (70 mi) NE of here earthquakes near Fresno County

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

Aftershocks so far

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

  1. 2.3 16km SW of Toms Place, CA
  2. 1.8 42km S of Qualeys Camp, NV
  3. 2.0 13km SW of Toms Place, CA
  4. 2.6 17km SE of Yosemite Valley, CA
  5. 2.2 4km SE of Mammoth Lakes, CA
  6. 2.0 13km WSW of Toms Place, CA
  7. 1.7 39km SSW of Qualeys Camp, NV
  8. 2.2 40km E of Lee Vining, CA
  9. 2.0 40km E of Lee Vining, CA
  10. 1.8 4km ESE of Mammoth Lakes, CA
  11. 1.7 10km WSW of West Bishop, CA
  12. 1.6 17km ENE of Lee Vining, CA
  13. 2.0 38km N of Toms Place, CA
  14. 2.3 13km SE of Mammoth Lakes, CA
  15. 1.9 7km S of Toms Place, 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.