QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near Dayton, NV

No earthquake was likely felt in Dayton in the 24 hours to 10:48 pm PST (06:48 UTC). The last one was M 3.3, 49 km (30 mi) E, at 6:36 pm PDT on 4 August 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Dayton

This page: a magnitude 1.9 earthquake was recorded 2 km (2 mi) southeast of Dayton, NV, at 12:49 pm PST on 1 February 2019 (20:49 UTC), 7.3 km deep. 1 person has reported feeling it to USGS.

USGS: 2 km SE of Dayton, Nevada

43 km (27 mi) SSE of Reno, NV · 17 km (11 mi) ENE of Carson, NV

12:49 pm PST, Feb 1, 2019 · · 7.3 km deep · released about 21 lb of TNT

10 km30 km60 km120 km N Carson City 17 kmStorey County 24 kmDouglas County 35 kmLyon County 39 kmAlpine County 70 kmSierra County 91 kmEl Dorado County 96 kmPlacer County 101 kmNevada County 104 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
12:49 pm PST on 1 February 2019 ()
Where
2 km (2 mi) southeast of Dayton, NV · earthquakes near Dayton
Magnitude
M 1.9 (ml)
Depth
7.3 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Carson City, 17 km WSW
Nearest mapped fault
Smith Valley fault, 15 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 2766 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 13 km (8 mi) from the epicentre. In Dayton, 2 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: Carson City, Johnson Lane, Indian Hills, Stagecoach.

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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 Near Fernley, Nevada · 38 km NNE of this epicentre
  2. 6.1 22 km SSE of Stagecoach, Nevada · 22 km ESE 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 · 37 km NNW of this epicentre
  5. 5.5 California-Nevada border region · 41 km SE 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 39.2226, -119.5718. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Carson City, NV 17 km (11 mi) WSW earthquakes near Carson City
Storey County, NV 24 km (15 mi) N earthquakes near Storey County
Douglas County, NV 35 km (22 mi) S earthquakes near Douglas County
Lyon County, NV 39 km (24 mi) SE earthquakes near Lyon County
Alpine County, CA 70 km (43 mi) SSW earthquakes near Alpine County
Sierra County, CA 91 km (56 mi) WNW earthquakes near Sierra County

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

Aftershocks so far

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

  1. 4.5 5 km NE of Indian Hills, Nevada
  2. 1.5 5 km NNW of Fish Springs, Nevada
  3. 1.6 17 km ESE of Silver Springs, Nevada
  4. 1.6 1 km SSE of Golden Valley, Nevada
  5. 2.7 4km N of Dollar Point, CA
  6. 2.2 3 km NE of Mesa Vista, California
  7. 1.5 5 km S of Floriston, California
  8. 1.8 12 km NE of Silver Springs, Nevada
  9. 2.7 5 km SSE of Floriston, California
  10. 1.5 5 km ENE of Indian Hills, Nevada
  11. 2.8 5 km ENE of Indian Hills, Nevada
  12. 2.5 9km SE of Dollar Point, CA
  13. 2.1 12 km NNW of Virginia City, Nevada
  14. 1.9 5 km NNE of Johnson Lane, Nevada
  15. 2.1 4 km NNE of Johnson Lane, 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.