QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

4 km NNW of Regina, New Mexico

· 2.6 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rio Arriba County 41 kmSandoval County 60 kmLos Alamos County 72 kmArchuleta 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 2.8 (ml)
Depth
2.6 km below the surface
Felt
no reports yet
Nearest
Rio Arriba County, 41 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1498 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 36.2230, -106.9803. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rio Arriba County, NM 41 km (25 mi) SW of here earthquakes near Rio Arriba County
Sandoval County, NM 60 km (38 mi) N of here earthquakes near Sandoval County
Los Alamos County, NM 72 km (45 mi) WNW of here earthquakes near Los Alamos County
Archuleta County, CO 109 km (68 mi) S of here earthquakes near Archuleta County
Santa Fe County, NM 121 km (75 mi) NW of here earthquakes near Santa Fe County
Conejos County, CO 131 km (82 mi) SSW of here earthquakes near Conejos County

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

Aftershocks so far

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

  1. 2.5 26 km WSW of Los Ojos, New Mexico
  2. 2.6 26 km WSW of Los Ojos, New Mexico
  3. 3.3 13 km NNW of La Cueva, New Mexico
  4. 2.9 11 km NNE of Gallina, New Mexico
  5. 2.9 28 km NNW of Regina, New Mexico
  6. 2.9 7 km ENE of Capulin, New Mexico
  7. 2.8 7 km ESE of Cuba, New Mexico
  8. 3.5 9 km E of Cuba, New Mexico
  9. 2.5 10 km E of Cuba, New Mexico
  10. 2.9 3 km ESE of Capulin, New Mexico
  11. 2.6 9 km N of Capulin, New Mexico
  12. 2.5 11 km NW of Jemez Springs, New Mexico
  13. 2.6 7 km WSW of La Cueva, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.2 on 2021-07-12 — it released about 130 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.