QuakeIndex

explosion · reviewed by a seismologist

M 1.9ml

10 km NNE of Summerlin South, Nevada

· 1.9 km deep · released about 22 lb of TNT

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10 km30 km60 km120 km N Clark County 23 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 (ml)
Depth
1.9 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Clark County, 23 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 99 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 22 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 5.8 680,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 480,000× the energy of this one
  3. Around the size people start to feel M 3.0 43× the energy of this one
  4. This earthquake M 1.9 about 22 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 36.1998, -115.2757. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Clark County, NV 23 km (15 mi) W of here earthquakes near Clark County

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

Aftershocks so far

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

  1. 2.4 10 km SSE of Enterprise, Nevada
  2. 1.5 4 km N of Blue Diamond, Nevada
  3. 1.9 6 km N of Boulder City, Nevada
  4. 1.8 11 km WNW of Summerlin South, Nevada
  5. 1.6 8 km NW of Summerlin South, Nevada
  6. 3.8 11 km NW of Summerlin South, Nevada
  7. 2.0 9 km SE of Enterprise, Nevada
  8. 1.7 14 km S of Enterprise, Nevada
  9. 1.5 1 km NNE of Whitney, Nevada
  10. 1.6 8 km S of Henderson, Nevada

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.