QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

13km SSE of Mammoth Lakes, CA

· 6.9 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 43 kmMadera County 81 kmMariposa County 88 kmTuolumne County 107 kmFresno County 107 kmEsmeralda County 117 kmMineral County 118 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 1.9 (md)
Depth
6.9 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Mono County, 43 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3063 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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 37.5302, -118.9207. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 43 km (27 mi) S of here earthquakes near Mono County
Madera County, CA 81 km (51 mi) ENE of here earthquakes near Madera County
Mariposa County, CA 88 km (54 mi) E of here earthquakes near Mariposa County
Tuolumne County, CA 107 km (66 mi) ESE of here earthquakes near Tuolumne County
Fresno County, CA 107 km (67 mi) NE of here earthquakes near Fresno County
Esmeralda County, NV 117 km (73 mi) WSW of here earthquakes near Esmeralda County

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

Aftershocks so far

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

  1. 1.6 9km E of Mammoth Lakes, CA
  2. 2.1 9km E of Mammoth Lakes, CA
  3. 2.4 20km ESE of Yosemite Valley, CA
  4. 2.1 14km W of Toms Place, CA
  5. 1.6 6km SE of Mammoth Lakes, CA
  6. 2.4 17km WSW of Toms Place, CA
  7. 2.0 14km SW of Toms Place, CA
  8. 1.5 6km SE of Mammoth Lakes, CA
  9. 1.6 14km WNW of Toms Place, CA
  10. 2.7 14km SE of Mammoth Lakes, CA
  11. 1.6 14km SE of Mammoth Lakes, CA
  12. 1.5 17 km ENE of Swall Meadows, California
  13. 2.0 16km ENE of Shaver Lake, CA
  14. 1.6 11km WSW of Round Valley, CA
  15. 1.7 20km S 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.