QuakeIndex

Earthquake · automatic estimate, may change

M 1.9ml

Earthquake near Carson City, NV

No earthquake was likely felt in Carson City in the 24 hours to 1:38 am PST (09:38 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 1.9 earthquake was recorded 6 km (4 mi) north-northeast of Carson City, NV, at 7:25 am PDT on 18 July 2021 (14:25 UTC), 4.0 km deep. 1 person has reported feeling it to USGS. The magnitude and location are an automatic first estimate and may change.

USGS: 6 km NNE of Carson City, Nevada

7 km (4 mi) N of Carson, NV · 38 km (24 mi) SSE of Reno, NV

7:25 am PDT, Jul 18, 2021 · · 4.0 km deep · released about 21 lb of TNT

10 km30 km60 km120 km N Carson City 7 kmStorey County 31 kmDouglas County 36 kmLyon County 52 kmAlpine County 66 kmSierra County 78 kmEl Dorado County 83 kmPlacer County 86 kmNevada County 89 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
7:25 am PDT on 18 July 2021 ()
Where
6 km (4 mi) north-northeast of Carson City, NV · earthquakes near Carson City
Magnitude
M 1.9 (ml)
Depth
4.0 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Carson City, 7 km S
Nearest mapped fault
Carson City fault, 3 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 1875 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 14 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 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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 4.5 on 2020-03-21 — about 7,900 times the energy of this one.

Before 2016, the USGS record lists 12 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 Near Fernley, Nevada · 48 km NE of this epicentre
  2. 6.1 22 km SSE of Stagecoach, Nevada · 37 km E of this epicentre
  3. 6.1 4 km S of Carter Springs, Nevada · 45 km S of this epicentre
  4. 6.0 Near Reno, Nevada · 32 km N of this epicentre
  5. 6.0 6 km WNW of Verdi, California · 47 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 39.2149, -119.7441. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Carson City, NV 7 km (4 mi) S earthquakes near Carson City
Storey County, NV 31 km (19 mi) NE earthquakes near Storey County
Douglas County, NV 36 km (23 mi) SSE earthquakes near Douglas County
Lyon County, NV 52 km (32 mi) ESE earthquakes near Lyon County
Alpine County, CA 66 km (41 mi) S earthquakes near Alpine County
Sierra County, CA 78 km (48 mi) WNW earthquakes near Sierra County

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

Aftershocks so far

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

  1. 1.6 3km ENE of Dollar Point, CA
  2. 1.5 15 km WNW of Stagecoach, Nevada
  3. 1.5 5 km ENE of Indian Hills, Nevada
  4. 1.6 3km ENE of Dollar Point, CA
  5. 2.4 Nevada
  6. 2.1 6 km SE of Floriston, California
  7. 2.8 6 km SE of Floriston, California
  8. 2.8 6 km SE of Floriston, California
  9. 1.6 6 km SE of Floriston, California
  10. 2.0 6 km SE of Floriston, California
  11. 1.5 6 km SE of Floriston, California
  12. 1.6 6 km SE of Floriston, California
  13. 1.5 9 km ESE of Sparks, Nevada
  14. 1.9 3 km NNE of Carter Springs, Nevada
  15. 1.5 10 km NNW of Stagecoach, 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.