QuakeIndex

Earthquake · reviewed by a seismologist

M 3.8ml

Earthquake near Grants, NM

No earthquake was likely felt in Grants in the 24 hours to 7:41 am MST (14:41 UTC). The last one was M 4.0, 27 km (17 mi) ENE, at 4:19 am MDT on 22 August 2026, estimated intensity III (weak) in town; 39 felt reports to USGS. Every earthquake near Grants

This page: a magnitude 3.8 earthquake was recorded 36 km (22 mi) northeast of Grants, NM, at 7:04 pm MDT on 17 May 2023 (01:04 UTC), 5.0 km deep. 15 people have reported feeling it to USGS.

USGS: 8 km ENE of San Mateo, New Mexico

88 km (55 mi) WNW of Albuquerque, NM

7:04 pm MDT, May 17, 2023 · · 5.0 km deep · released about 7.6 tons of TNT

10 km30 km60 km120 km N Cibola County 63 kmMcKinley County 67 kmSandoval County 71 kmBernalillo County 88 kmValencia County 100 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
7:04 pm MDT on 17 May 2023 ()
Where
36 km (22 mi) northeast of Grants, NM · earthquakes near Grants
Magnitude
M 3.8 (ml)
Depth
5.0 km below the surface
Felt
15 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
Nearest
Cibola County, 63 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1207 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 83 km (52 mi) from the epicentre. In Grants, 36 km away, the estimate is intensity III (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Grants 36 km, intensity III. Estimated for each town centre; each link is that town's own record.

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 35.3661, -107.5612. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Cibola County, NM 63 km (39 mi) SW earthquakes near Cibola County
McKinley County, NM 67 km (42 mi) WNW earthquakes near McKinley County
Sandoval County, NM 71 km (44 mi) ENE earthquakes near Sandoval County
Bernalillo County, NM 88 km (55 mi) ESE earthquakes near Bernalillo County
Valencia County, NM 100 km (62 mi) SE earthquakes near Valencia County
Los Alamos County, NM 126 km (79 mi) ENE earthquakes near Los Alamos 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. 2.7 11 km ESE of San Mateo, New Mexico
  2. 4.0 8 km SSE of San Mateo, New Mexico
  3. 2.8 19 km N of San Mateo, 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.