Earthquake · automatic estimate, may change
M 1.6ml
Earthquake near Alamo, NV
USGS: 33 km S of Alamo, Nevada
92 km (57 mi) N of Las Vegas, NV
- When
- 4:20 am PDT on 28 September 2026 ()
- Where
- 34 km (21 mi) S of Alamo, NV · earthquakes near Alamo
- Magnitude
- M 1.6 (ml)
- Depth
- 4.1 km below the surface
- Felt
- no reports yet
- Nearest
- Lincoln County, 71 km NNE
- Status
- Automatic — a machine’s first estimate, which may change
USGS · last changed by USGS · we first saw it 5 days ago
A magnitude 1.6 earthquake was recorded 34 km (21 mi) S of Alamo, NV, at 4:20 am PDT on 28 September 2026 (11:20 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
How big was it?
This earthquake released about 6.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,400,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
- Around the size people start to feel M 3.0 150× the energy of this one
- This earthquake M 1.6 about 6.4 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
The largest earthquake within 50 km since 2016 was M 4.4 on 2026-04-29 — about 19,000 times the energy of this one.
Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:
- 5.0 43 km SSE of Alamo, Nevada · 22 km ESE 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 37.0643, -115.2290. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Lincoln County, NV | 71 km (44 mi) | NNE | earthquakes near Lincoln County |
| Clark County, NV | 96 km (60 mi) | SSE | earthquakes near Clark County |
| Nye County, NV | 148 km (92 mi) | NW | earthquakes near Nye County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
1 earthquake has been recorded within 50 km since this one.
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
- 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.