47 km ESE of Alamo, Nevada

2026-02-23 05:40 UTC · 15 km deep · released about 25 lb of TNT

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: 2026-02-23 05:40 UTC
Magnitude: M 1.9 (ml)
Depth: 15 km below the surface
Felt: no reports yet
Nearest: Lincoln County, 57 km NNW
Status: Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS 216 days ago · we first saw it 216 days ago

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

How big was it?

This earthquake released about 25 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 600,000× the energy of this one
Magna, Utah 2020 M 5.7 420,000× the energy of this one
Around the size people start to feel M 3.0 38× the energy of this one
This earthquake M 1.9 about 25 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

Map loads when it scrolls into view

Epicentre 37.1391, -114.7070. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction
Lincoln County, NV	57 km (35 mi)	SSE of here	earthquakes near Lincoln County
Clark County, NV	106 km (66 mi)	NNE of here	earthquakes near Clark County
Washington County, UT	109 km (68 mi)	W of here	earthquakes near Washington County

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

Aftershocks so far

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

1.7 21 km ESE of Alamo, Nevada 18:39 UTC
1.5 31 km ESE of Alamo, Nevada 21:11 UTC
1.8 27 km E of Alamo, Nevada 19:53 UTC
1.6 13 km S of Alamo, Nevada 17:31 UTC
2.6 44 km NNW of Moapa Town, Nevada 20:05 UTC
1.9 27 km SE of Caliente, Nevada 05:41 UTC
2.7 40 km SE of Alamo, Nevada 02:21 UTC
1.7 15 km SSW of Alamo, Nevada 17:15 UTC
1.7 45 km ESE of Alamo, Nevada 17:55 UTC
2.3 28 km SE of Caliente, Nevada 09:49 UTC
1.7 21 km E of Alamo, Nevada 11:21 UTC
1.6 27 km SSE of Caliente, Nevada 03:09 UTC
1.7 29 km NNE of Moapa Town, Nevada 23:58 UTC
2.0 33 km SSW of Caliente, Nevada 10:06 UTC
1.6 43 km S of Caliente, Nevada 12:19 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 14:57 UTC. 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 4.0 on 2025-06-06 — it released about 1,200 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

The official USGS event page — the source of record for every value above
Did you feel it? Report it to USGS — reports go to USGS, not to us
ShakeMap for this event, when USGS has produced one

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.