QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Carson City, NV

No earthquake was likely felt in Carson City in the 24 hours to 10:33 pm PST (06:33 UTC). The last one was M 2.2, 9 km (6 mi) SSE, at 9:41 am PST on 2 November 2026, estimated intensity II (weak) in town. Every earthquake near Carson City

This page: a magnitude 2.1 earthquake was recorded 6 km (4 mi) southeast of Carson City, NV, at 9:32 am PST on 27 December 2018 (17:32 UTC), 8.7 km deep. 1 person has reported feeling it to USGS.

USGS: 6 km SE of Carson City, Nevada

in Carson, NV · 49 km (30 mi) SSE of Reno, NV

9:32 am PST, Dec 27, 2018 · · 8.7 km deep · released about 43 lb of TNT

Every earthquake near Carson City Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Carson City 4 kmDouglas County 26 kmStorey County 39 kmLyon County 47 kmAlpine County 56 kmEl Dorado County 79 kmSierra County 85 kmPlacer County 86 kmNevada County 92 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
9:32 am PST on 27 December 2018 ()
Where
6 km (4 mi) southeast of Carson City, NV · earthquakes near Carson City
Magnitude
M 2.1 (ml)
Depth
8.7 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Carson City, 4 km NNW
Nearest mapped fault
East Carson Valley fault, 3 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 2811 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 15 km (9 mi) from the epicentre. In Carson City, 6 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.

Likely felt in: Carson City 6 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 9 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.1 22 km SSE of Stagecoach, Nevada · 35 km E of this epicentre
  2. 6.1 4 km S of Carter Springs, Nevada · 34 km S of this epicentre
  3. 6.0 Near Reno, Nevada · 43 km N of this epicentre
  4. 5.5 California-Nevada border region · 47 km ESE of this epicentre
  5. 5.1 10 km SE of South Lake Tahoe, California · 32 km SSW 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 39.1198, -119.7243. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Carson City, NV 4 km (3 mi) NNW earthquakes near Carson City
Douglas County, NV 26 km (16 mi) SSE earthquakes near Douglas County
Storey County, NV 39 km (24 mi) NNE earthquakes near Storey County
Lyon County, NV 47 km (29 mi) ESE earthquakes near Lyon County
Alpine County, CA 56 km (35 mi) S earthquakes near Alpine County
El Dorado County, CA 79 km (49 mi) WSW earthquakes near El Dorado County

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

Aftershocks so far

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

  1. 1.8 3 km ENE of Markleeville, California
  2. 1.8 6 km NW of Topaz Ranch Estates, Nevada
  3. 2.7 4km N of Dollar Point, CA
  4. 1.6 3 km NNE of Truckee, California
  5. 2.2 3 km NE of Mesa Vista, California
  6. 1.5 5 km S of Floriston, California
  7. 2.7 5 km SSE of Floriston, California
  8. 1.6 5 km N of Truckee, California
  9. 1.5 5 km ENE of Indian Hills, Nevada
  10. 2.8 5 km ENE of Indian Hills, Nevada
  11. 2.5 9km SE of Dollar Point, CA
  12. 2.1 12 km NNW of Virginia City, Nevada
  13. 1.9 5 km NNE of Johnson Lane, Nevada
  14. 2.1 4 km NNE of Johnson Lane, Nevada
  15. 3.2 11 km SSW of Dayton, 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

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