Earthquake · automatic estimate, may change
M 1.8ml
Earthquake near Moapa Town, NV
USGS: 15 km SW of Moapa Town, Nevada
62 km (39 mi) NE of Las Vegas, NV · 47 km (29 mi) NE of North Las Vegas, NV
- When
- 1:01 pm PDT on 29 March 2018 ()
- Where
- 16 km (10 mi) SW of Moapa Town, NV · earthquakes near Moapa Town
- Magnitude
- M 1.8 (ml)
- Depth
- 0.0 km below the surface
- Felt
- no reports yet
- Nearest
- Clark County, 49 km SSW
- Nearest mapped fault
- California Wash fault, 10 km from its surface trace — near is not the same as on
- Status
- Automatic — a machine’s first estimate, which may change
USGS · last changed by USGS · we first saw it 3109 days ago
A magnitude 1.8 earthquake was recorded 16 km (10 mi) SW of Moapa Town, NV, at 1:01 pm PDT on 29 March 2018 (20:01 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: Moapa Valley.
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.
- Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 710,000× the energy of this one
- Around the size people start to feel M 3.0 63× the energy of this one
- 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:
- 5.0 43 km SSE of Alamo, Nevada · 50 km NNW 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 36.6015, -114.7420. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Clark County, NV | 49 km (31 mi) | SSW | earthquakes near Clark County |
| Lincoln County, NV | 115 km (72 mi) | N | earthquakes near Lincoln County |
| Mohave County, AZ | 133 km (82 mi) | SE | earthquakes near Mohave County |
| Washington County, UT | 134 km (83 mi) | NE | earthquakes near Washington County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
47 earthquakes have been recorded within 50 km since this one.
- 1.6 45 km NW of Moapa Town, Nevada
- 2.1 11 km NE of Nellis Air Force Base, Nevada
- 1.7 39 km E of Indian Springs, Nevada
- 1.6 16 km SE of Moapa Valley, Nevada
- 1.6 33 km NW of Nellis Air Force Base, Nevada
- 1.5 44 km NNW of Moapa Town, Nevada
- 1.5 17 km NE of Nellis Air Force Base, Nevada
- 1.6 34 km NNW of Nellis Air Force Base, Nevada
- 2.6 32 km SSE of Moapa Valley, Nevada
- 1.8 24 km ENE of Nellis Air Force Base, Nevada
- 2.1 22 km NNE of Nellis Air Force Base, Nevada
- 1.8 24 km NNE of Nellis Air Force Base, Nevada
- 1.7 8 km E of Nellis Air Force Base, Nevada
- 1.5 20 km NE of Nellis Air Force Base, Nevada
- 2.2 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.