QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

24 km E of Boulder City, Nevada

· 13 km deep · released about 5.4 lb of TNT

10 km30 km60 km120 km N Clark County 49 kmMohave County 78 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 1.5 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Clark County, 49 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 517 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 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 35.9714, -114.5567. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Clark County, NV 49 km (31 mi) ESE of here earthquakes near Clark County
Mohave County, AZ 78 km (48 mi) WNW of here earthquakes near Mohave County

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

Aftershocks so far

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

  1. 1.9 6 km N of Boulder City, Nevada
  2. 1.5 1 km NNE of Whitney, Nevada
  3. 1.6 8 km S of Henderson, Nevada
  4. 1.8 17 km ENE of Boulder City, Nevada
  5. 1.6 8 km N of Boulder City, Nevada
  6. 1.9 12 km NNW of Nelson, Nevada
  7. 1.8 18 km NE of Henderson, Nevada
  8. 1.7 5 km ENE of Whitney, Nevada
  9. 1.9 5 km NNE of Whitney, Nevada
  10. 1.7 12 km S of Boulder City, Nevada
  11. 1.7 8 km NE of Dolan Springs, Arizona
  12. 1.8 3 km WSW of Boulder City, Nevada
  13. 2.3 20 km ENE of Nelson, Nevada
  14. 1.7 2 km WNW of Whitney, Nevada
  15. 1.8 7 km WSW 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.