QuakeIndex

Earthquake · reviewed by a seismologist

M 3.8mb_lg

13 km SSW of Clayton, New Mexico

· 5.0 km deep · released about 7.6 tons of TNT

10 km30 km60 km120 km N Union County 25 kmDallam County 59 kmHarding County 76 kmCimarron County 80 kmHartley County 81 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 3.8 (mb_lg)
Depth
5.0 km below the surface
Felt
22 reports · strongest reported intensity IV
Measured shaking
intensity V (ShakeMap)
Nearest
Union County, 25 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1584 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 22 people have reported feeling it to USGS.

How big was it?

This earthquake released about 7.6 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.8 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 22,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 1,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 710× the energy of this one
  4. This earthquake M 3.8 about 7.6 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 16× 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 36.3449, -103.2532. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Union County, NM 25 km (16 mi) SE of here earthquakes near Union County
Dallam County, TX 59 km (37 mi) W of here earthquakes near Dallam County
Harding County, NM 76 km (47 mi) NE of here earthquakes near Harding County
Cimarron County, OK 80 km (49 mi) SW of here earthquakes near Cimarron County
Hartley County, TX 81 km (50 mi) NW of here earthquakes near Hartley County
Oldham County, TX 120 km (75 mi) NNW of here earthquakes near Oldham County

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

Aftershocks so far

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

  1. 2.2 9 km SW of Texline, Texas
  2. 2.6 34 km NNW of Nara Visa, New Mexico
  3. 3.4 8 km S of Clayton, New Mexico

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.