Earthquake · automatic estimate, may change
M 1.7ml
Earthquake near Summerlin South, NV
No earthquake was likely felt in Summerlin South in the 24 hours to 5:46 am PST (13:46 UTC). The last one was M 1.7, 11 km (7 mi) NNW, at 3:41 pm PDT on 20 October 2026, estimated intensity II (weak) in town. Every earthquake near Summerlin South
This page: a magnitude 1.7 earthquake was recorded 8 km (5 mi) northwest of Summerlin South, NV, at 1:21 pm PDT on 23 March 2026 (20:21 UTC), 14 km deep. The magnitude and location are an automatic first estimate and may change.
USGS: 7 km NW of Summerlin South, Nevada
12 km (8 mi) WSW of Las Vegas, NV
- When
- 1:21 pm PDT on 23 March 2026 ()
- Where
- 8 km (5 mi) northwest of Summerlin South, NV · earthquakes near Summerlin South
- Magnitude
- M 1.7 (ml)
- Depth
- 14 km below the surface
- Felt
- no reports yet
- Nearest
- Clark County, 33 km E
- Status
- Automatic — a machine’s first estimate, which may change
USGS · last changed by USGS · we first saw it 235 days ago
Earthquake alerts for Summerlin South, NV
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth it was probably too small to be felt, even directly above it. In Summerlin South, 8 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.
Earthquakes near other towns within 30 km: Spring Valley, Enterprise, Las Vegas, Paradise, North Las Vegas, Winchester.
How big was it?
This earthquake released about 10 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
- Around the size people start to feel M 3.0 92× the energy of this one
- This earthquake M 1.7 about 10 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 4.5 on 2018-07-05 — about 16,000 times the energy of this one.
Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.
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 36.1748, -115.3805. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Clark County, NV | 33 km (21 mi) | E | earthquakes near Clark County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
30 earthquakes have been recorded within 50 km since this one.
- 1.8 9 km SE of Blue Diamond, Nevada
- 1.8 9 km ENE of Mount Charleston, Nevada
- 1.7 25 km N of Nellis Air Force Base, Nevada
- 1.6 12 km SSE of Mount Charleston, Nevada
- 1.5 12 km ESE of Enterprise, Nevada
- 1.7 15 km ENE of Whitney, Nevada
- 1.6 14 km N of Summerlin South, Nevada
- 2.0 9 km SSE of Enterprise, Nevada
- 2.3 11 km WSW of Henderson, Nevada
- 1.6 13 km NNW of Summerlin South, Nevada
- 1.7 11 km NNW of Summerlin South, Nevada
- 2.3 19 km S of Henderson, Nevada
- 1.6 3 km E of Spring Valley, Nevada
- 1.9 18 km NNE of Nellis Air Force Base, Nevada
- 1.6 7 km SSW of Enterprise, 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
- 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.