QuakeIndex

Earthquake · automatic estimate, may change

M 1.8ml

18 km W of Sandy Valley, Nevada

· 0.0 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Clark County 85 kmSan Bernardino County 113 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
0.0 km below the surface
Felt
no reports yet
Nearest
Clark County, 85 km ENE
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 1450 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 35.8356, -115.8332. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Clark County, NV 85 km (53 mi) WSW of here earthquakes near Clark County
San Bernardino County, CA 113 km (70 mi) NNE of here earthquakes near San Bernardino County

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

Aftershocks so far

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

  1. 1.5 4 km N of Blue Diamond, Nevada
  2. 2.1 18 km E of Shoshone, CA
  3. 1.8 11 km WNW of Summerlin South, Nevada
  4. 2.2 27 km S of Tecopa, CA
  5. 1.8 27 km S of Tecopa, CA
  6. 3.3 27 km S of Tecopa, CA
  7. 1.6 31 km S of Sandy Valley, Nevada
  8. 1.6 6 km SSW of Blue Diamond, Nevada
  9. 1.5 12 km NE of Tecopa, California
  10. 1.8 14 km SSE of Mount Charleston, Nevada
  11. 1.7 10 km SSE of Blue Diamond, Nevada
  12. 1.6 36 km SSE of Sandy Valley, Nevada
  13. 1.8 18 km SSW of Tecopa, California
  14. 1.6 10 km SW of Enterprise, Nevada
  15. 2.8 14 km SSE of Tecopa, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.5 on 2018-07-05 — it released about 11,000 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.