Earthquake · reviewed by a seismologist
M 1.6md
Earthquake near Topaz Ranch Estates, NV
No earthquake was likely felt in Topaz Ranch Estates in the 24 hours to 12:49 pm PST (20:49 UTC). The last one was M 2.3, 8 km (5 mi) SW, at 6:36 pm PDT on 29 September 2026, estimated intensity II (weak) in town. Every earthquake near Topaz Ranch Estates
This page: a magnitude 1.6 earthquake was recorded 39 km (24 mi) south of Topaz Ranch Estates, NV, at 12:09 am PDT on 6 October 2021 (07:09 UTC), 7.2 km deep.
USGS: 24km ENE of Dardanelle, CA
- When
- 12:09 am PDT on 6 October 2021 ()
- Where
- 39 km (24 mi) south of Topaz Ranch Estates, NV · earthquakes near Topaz Ranch Estates
- Magnitude
- M 1.6 (md)
- Depth
- 7.2 km below the surface
- Felt
- no reports yet
- Nearest
- Alpine County, 33 km NW
- Nearest mapped fault
- West Walker River fault, 9 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1863 days ago
Earthquake alerts for Topaz Ranch Estates, NV
Get a notification in this browser when USGS records an earthquake near Topaz Ranch Estates, NV. No account or email needed.
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, people at rest would likely notice it out to about 9 km (6 mi) from the epicentre. In Topaz Ranch Estates, 39 km away, the estimate is intensity I (not felt). 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 8.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,800,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
- Around the size people start to feel M 3.0 110× the energy of this one
- This earthquake M 1.6 about 8.4 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 6.0 on 2021-07-08 — about 3,600,000 times the energy of this one.
Before 2016, the USGS record lists 6 earthquakes of M5 or more within 50 km; the five largest:
- 6.1 4 km S of Carter Springs, Nevada · 49 km N of this epicentre
- 5.2 23 km S of Walker, California · 11 km SSE of this epicentre
- 5.1 19 km W of Bridgeport, California · 20 km SSE of this epicentre
- 5.1 8 km ESE of Mesa Vista, California · 45 km NNW of this epicentre
- 5.0 Near Coleville, California · 22 km NNE 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 38.3862, -119.5612. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Alpine County, CA | 33 km (21 mi) | NW | earthquakes near Alpine County |
| Tuolumne County, CA | 54 km (33 mi) | SW | earthquakes near Tuolumne County |
| Douglas County, NV | 58 km (36 mi) | N | earthquakes near Douglas County |
| Lyon County, NV | 77 km (48 mi) | NNE | earthquakes near Lyon County |
| Mono County, CA | 80 km (49 mi) | SE | earthquakes near Mono County |
| Carson City, NV | 87 km (54 mi) | N | earthquakes near Carson City |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
60 earthquakes have been recorded within 50 km since this one.
- 1.8 7km E of Walker, CA
- 2.1 7km ENE of Walker, CA
- 2.0 4km WNW of Walker, CA
- 1.9 6km NNE of Walker, CA
- 1.6 4km NW of Walker, CA
- 1.9 2km WSW of Walker, CA
- 2.4 6km NW of Walker, CA
- 2.2 2km N of Walker, CA
- 1.8 6km SW of Walker, CA
- 1.5 6km ENE of Walker, CA
- 2.1 6km WNW of Walker, CA
- 1.7 7km NE of Walker, CA
- 2.6 6km ENE of Walker, CA
- 1.5 7km ENE of Walker, CA
- 1.8 5km NW of Walker, CA
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.