QuakeIndex

Earthquake · automatic estimate, may change

M 2.3md

Earthquake near Topaz Ranch Estates, NV

USGS: 20 km E of Markleeville, CA

99 km (61 mi) SSE of Reno, NV · 54 km (34 mi) SSE of Carson, NV

6:36 pm PDT, Sep 29, 2026 · · 2.3 km deep · released about 98 lb of TNT

10 km30 km60 km120 km N Alpine County 21 kmDouglas County 24 kmLyon County 49 kmCarson City 54 kmTuolumne County 82 kmStorey County 84 kmEl Dorado County 84 kmAmador County 98 kmMineral County 102 km
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
6:36 pm PDT on 29 September 2026 ()
Where
8 km (5 mi) SW of Topaz Ranch Estates, NV · earthquakes near Topaz Ranch Estates
Magnitude
M 2.3 (md)
Depth
2.3 km below the surface
Felt
no reports yet
Nearest
Alpine County, 21 km WSW
Nearest mapped fault
Antelope Valley fault, 2 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 2 days ago

A magnitude 2.3 earthquake was recorded 8 km (5 mi) SW of Topaz Ranch Estates, NV, at 6:36 pm PDT on 29 September 2026 (01:36 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Smith Valley, Smith, Gardnerville Ranchos.

How big was it?

This earthquake released about 98 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.8× the energy of this one
  4. This earthquake M 2.3 about 98 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 310,000 times the energy of this one.

Before 2016, the USGS record lists 7 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.1 4 km S of Carter Springs, Nevada · 16 km NNW of this epicentre
  2. 5.5 California-Nevada border region · 47 km NE of this epicentre
  3. 5.2 23 km S of Walker, California · 44 km S of this epicentre
  4. 5.1 10 km SE of South Lake Tahoe, California · 35 km NW of this epicentre
  5. 5.1 8 km ESE of Mesa Vista, California · 15 km NW 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 38.6877, -119.5683. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Alpine County, CA 21 km (13 mi) WSW earthquakes near Alpine County
Douglas County, NV 24 km (15 mi) N earthquakes near Douglas County
Lyon County, NV 49 km (31 mi) NE earthquakes near Lyon County
Carson City, NV 54 km (34 mi) NNW earthquakes near Carson City
Tuolumne County, CA 82 km (51 mi) SSW earthquakes near Tuolumne County
Storey County, NV 84 km (52 mi) N earthquakes near Storey 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.

  1. 3.3 9 km WSW of South Lake Tahoe, 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

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