QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Alamo, NV

No earthquake was likely felt in Alamo in the 24 hours to 3:26 am PST (11:26 UTC). The last one was M 3.6, 33 km (21 mi) SSW, at 12:44 am PDT on 30 April 2026, estimated intensity II (weak) in town. Every earthquake near Alamo

This page: a magnitude 1.8 earthquake was recorded 37 km (23 mi) west-northwest of Alamo, NV, at 6:37 am PST on 27 January 2025 (14:37 UTC), 11 km deep.

USGS: 26 km SE of Rachel, Nevada

6:37 am PST, Jan 27, 2025 · · 11 km deep · released about 15 lb of TNT

Every earthquake near Alamo Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lincoln County 65 kmNye County 97 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
6:37 am PST on 27 January 2025 ()
Where
37 km (23 mi) west-northwest of Alamo, NV · earthquakes near Alamo
Magnitude
M 1.8 (ml)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Lincoln County, 65 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 655 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 9 km (6 mi) from the epicentre. In Alamo, 37 km away, the estimate is intensity II (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.

How big was it?

This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.3 45km NW of Alamo, NV · 21 km N of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 37.4563, -115.5677. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lincoln County, NV 65 km (41 mi) ENE earthquakes near Lincoln County
Nye County, NV 97 km (60 mi) NW earthquakes near Nye County

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

Aftershocks so far

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

  1. 1.5 31 km SSW of Alamo, Nevada
  2. 1.6 29 km SSW of Alamo, Nevada
  3. 2.8 30 km SSW of Alamo, Nevada
  4. 1.5 25 km SW of Alamo, Nevada
  5. 1.8 30 km SSW of Alamo, Nevada
  6. 3.2 29 km SSW of Alamo, Nevada
  7. 1.6 30 km SSW of Alamo, Nevada
  8. 4.4 30 km SSW of Alamo, Nevada
  9. 1.8 31 km SSW of Alamo, Nevada
  10. 2.4 30 km SSW of Alamo, Nevada
  11. 1.6 21 km NNW of Rachel, Nevada
  12. 1.5 24 km WNW of Rachel, Nevada
  13. 2.0 38 km SW of Rachel, Nevada
  14. 1.5 29 km SSW of Alamo, Nevada
  15. 3.1 31 km SSW of Alamo, Nevada

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.