QuakeIndex

Earthquake · reviewed by a seismologist

M 4.4mb

45 km ESE of Littlefield, Arizona

· 10 km deep · released about 60 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washington County 65 kmMohave County 109 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 4.4 (mb)
Depth
10 km below the surface
Felt
514 reports · strongest reported intensity III
Measured shaking
intensity V (ShakeMap)
USGS impact alert
green
Nearest
Washington County, 65 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1376 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 514 people have reported feeling it to USGS.

How big was it?

This earthquake released about 60 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 2,800× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 130× the energy of this one
  3. Magna, Utah 2020 M 5.7 89× the energy of this one
  4. This earthquake M 4.4 about 60 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 130× more

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 36.6773, -113.4980. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Washington County, UT 65 km (40 mi) S of here earthquakes near Washington County
Mohave County, AZ 109 km (68 mi) NNE of here earthquakes near Mohave County

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

Aftershocks so far

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

  1. 2.9 30 km S of Scenic, Arizona
  2. 2.7 32 km SSE of Bunkerville, Nevada
  3. 1.7 33 km SSE of Bunkerville, Nevada
  4. 3.5 28 km SSE of Bunkerville, Nevada
  5. 2.2 55 km ESE of Scenic, Arizona
  6. 2.0 34 km S of Scenic, Arizona
  7. 2.5 31 km S of Scenic, Arizona
  8. 1.6 28 km S of Scenic, Arizona
  9. 2.7 33 km S of Scenic, Arizona
  10. 1.6 32 km S of Scenic, Arizona
  11. 3.6 32 km S of Scenic, Arizona
  12. 1.9 27 km S of Scenic, Arizona
  13. 2.3 30 km SSE of Bunkerville, Nevada
  14. 1.6 37 km S of Scenic, Arizona
  15. 2.1 32 km S of Scenic, Arizona

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.