QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

19 km ENE of Mono City, California

· 0.2 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mono County 23 kmMineral County 64 kmTuolumne County 90 kmAlpine County 93 kmLyon County 103 kmMariposa County 104 kmDouglas County 105 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 (ml)
Depth
0.2 km below the surface
Felt
no reports yet
Nearest
Mono County, 23 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1796 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 15 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 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 38.1163, -118.9475. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mono County, CA 23 km (14 mi) NNW of here earthquakes near Mono County
Mineral County, NV 64 km (40 mi) SW of here earthquakes near Mineral County
Tuolumne County, CA 90 km (56 mi) E of here earthquakes near Tuolumne County
Alpine County, CA 93 km (58 mi) SE of here earthquakes near Alpine County
Lyon County, NV 103 km (64 mi) SSE of here earthquakes near Lyon County
Mariposa County, CA 104 km (65 mi) NE of here earthquakes near Mariposa County

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

Aftershocks so far

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

  1. 1.5 California-Nevada border region
  2. 2.7 12km SSE of Bodie, CA
  3. 2.5 28km SE of Bodie, CA
  4. 1.5 23 km NE of Mono City, California
  5. 2.1 39km NNE of Toms Place, CA
  6. 1.5 28 km SSW of Walker Lake, Nevada
  7. 1.9 8km NNE of Bridgeport, CA
  8. 1.8 16 km SSE of Walker, California
  9. 1.7 19km SSE of Bodie, CA
  10. 1.6 27 km WSW of Hawthorne, Nevada
  11. 1.6 7km NNW of Lee Vining, CA
  12. 2.3 42km S of Qualeys Camp, NV
  13. 1.6 29 km SSW of Walker Lake, Nevada
  14. 1.5 19 km ENE of Mono City, California
  15. 1.7 42km S of Qualeys Camp, NV

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 5.6 on 2016-12-28 — it released about 500,000 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.