QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

Earthquake near Socorro, NM

No earthquake was likely felt in Socorro in the 24 hours to 3:52 am MST (10:52 UTC). The last one was M 3.6, 298 km (185 mi) SE, at 4:55 pm MDT on 14 October 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Socorro

This page: a magnitude 2.9 earthquake was recorded 15 km (9 mi) southeast of Socorro, NM, at 4:41 am MST on 11 December 2017 (11:41 UTC), 6.3 km deep.

USGS: 9 km ENE of San Antonio, New Mexico

4:41 am MST, Dec 11, 2017 · · 6.3 km deep · released about 680 lb of TNT

10 km30 km60 km120 km N Socorro County 15 kmValencia County 84 kmSierra County 101 kmTorrance County 105 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
4:41 am MST on 11 December 2017 ()
Where
15 km (9 mi) southeast of Socorro, NM · earthquakes near Socorro
Magnitude
M 2.9 (ml)
Depth
6.3 km below the surface
Felt
no reports yet
Nearest
Socorro County, 15 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3172 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 31 km (19 mi) from the epicentre. In Socorro, 15 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: Socorro 15 km, intensity III. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 33.9625, -106.7799. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Socorro County, NM 15 km (9 mi) WNW earthquakes near Socorro County
Valencia County, NM 84 km (52 mi) N earthquakes near Valencia County
Sierra County, NM 101 km (63 mi) SSW earthquakes near Sierra County
Torrance County, NM 105 km (65 mi) NE earthquakes near Torrance County
Cibola County, NM 155 km (96 mi) NW earthquakes near Cibola County

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

Aftershocks so far

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

  1. 2.6 15 km E of Socorro, New Mexico
  2. 3.2 16 km ESE of Magdalena, New Mexico
  3. 2.5 13 km W of Socorro, New Mexico
  4. 2.6 10 km W of Socorro, New Mexico
  5. 2.7 37 km ENE of San Antonio, New Mexico
  6. 3.5 14 km NW of Alamillo, New Mexico
  7. 2.1 37 km ENE of San Antonio, New Mexico
  8. 2.2 2 km SSE of Luis Lopez, New Mexico
  9. 2.6 4 km W of Lemitar, New Mexico
  10. 3.1 5 km ENE of La Joya, New Mexico
  11. 2.2 New Mexico
  12. 3.3 4 km SSW of Luis Lopez, New Mexico
  13. 3.4 5 km SW of Luis Lopez, New Mexico
  14. 2.6 3 km SW of Luis Lopez, New Mexico
  15. 2.6 7 km W of Escondida, 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

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