QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Topaz Ranch Estates, NV

No earthquake was likely felt in Topaz Ranch Estates in the 24 hours to 5:41 am PST (13:41 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 8 km (5 mi) south-southeast of Topaz Ranch Estates, NV, at 7:22 pm PST on 30 November 2018 (03:22 UTC), 9.3 km deep. 1 person has reported feeling it to USGS.

USGS: 7 km SSE of Topaz Ranch Estates, Nevada

59 km (36 mi) SSE of Carson, NV · 103 km (64 mi) SSE of Reno, NV

7:22 pm PST, Nov 30, 2018 · · 9.3 km deep · released about 7.6 lb of TNT

10 km30 km60 km120 km N Douglas County 29 kmAlpine County 31 kmLyon County 44 kmCarson City 59 kmStorey County 85 kmTuolumne County 85 kmMineral County 92 kmEl Dorado County 95 kmMono County 99 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
7:22 pm PST on 30 November 2018 ()
Where
8 km (5 mi) south-southeast of Topaz Ranch Estates, NV · earthquakes near Topaz Ranch Estates
Magnitude
M 1.6 (ml)
Depth
9.3 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Douglas County, 29 km NNW
Nearest mapped fault
Antelope Valley fault, 5 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 2902 days ago

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 6 km (4 mi) from the epicentre. In Topaz Ranch Estates, 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: Smith Valley, Smith.

How big was it?

This earthquake released about 7.6 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.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 8 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.1 4 km S of Carter Springs, Nevada · 23 km NW of this epicentre
  2. 5.5 California-Nevada border region · 42 km NNE of this epicentre
  3. 5.2 23 km S of Walker, California · 42 km S of this epicentre
  4. 5.1 10 km SE of South Lake Tahoe, California · 44 km WNW of this epicentre
  5. 5.1 8 km ESE of Mesa Vista, California · 24 km WNW 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 38.6772, -119.4532. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Douglas County, NV 29 km (18 mi) NNW earthquakes near Douglas County
Alpine County, CA 31 km (19 mi) WSW earthquakes near Alpine County
Lyon County, NV 44 km (28 mi) NNE earthquakes near Lyon County
Carson City, NV 59 km (36 mi) NNW earthquakes near Carson City
Storey County, NV 85 km (53 mi) N earthquakes near Storey County
Tuolumne County, CA 85 km (53 mi) SSW earthquakes near Tuolumne County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

22 earthquakes have been recorded within 50 km since this one.

  1. 1.9 13km WNW of Bridgeport, CA
  2. 2.3 26km ENE of Dardanelle, CA
  3. 2.4 9km NE of Markleeville, CA
  4. 1.6 7 km SSW of Markleeville, California
  5. 2.1 24km SSW of Smith Valley, NV
  6. 1.5 California-Nevada border region
  7. 2.4 19km E of Markleeville, CA
  8. 2.5 8km NE of Markleeville, CA
  9. 2.3 7km NE of Markleeville, CA
  10. 2.3 7km SSW of Markleeville, CA
  11. 1.7 7 km SSW of Carter Springs, Nevada
  12. 1.8 California-Nevada border region
  13. 1.5 5 km NW of Topaz, California
  14. 1.5 22 km W of Walker Lake, Nevada
  15. 2.3 3km W of Markleeville, 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.