QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Winnemucca, NV

No earthquake was likely felt in Winnemucca in the 24 hours to 8:17 am PST (16:17 UTC). The last one was M 5.7, 212 km (132 mi) SSW, at 6:29 pm PDT on 13 April 2026, estimated intensity II (weak) in town; 6,515 felt reports to USGS. Every earthquake near Winnemucca

This page: a magnitude 1.8 earthquake was recorded 44 km (28 mi) south-southeast of Winnemucca, NV, at 11:04 am PDT on 21 March 2019 (18:04 UTC), less than 1 km deep.

USGS: 41 km SSW of Golconda, Nevada

11:04 am PDT, Mar 21, 2019 · · 0.1 km deep · released about 15 lb of TNT

Every earthquake near Winnemucca Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pershing County 71 kmLander County 90 kmHumboldt 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
11:04 am PDT on 21 March 2019 ()
Where
44 km (28 mi) south-southeast of Winnemucca, NV · earthquakes near Winnemucca
Magnitude
M 1.8 (ml)
Depth
0.1 km below the surface
Felt
no reports yet
Nearest
Pershing County, 71 km WSW
Nearest mapped fault
Grass Valley fault, 2 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 2794 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 Winnemucca, 44 km away, the estimate is intensity I (not felt). 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.

How big was it?

This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 4 earthquakes of M5 or more within 50 km:

  1. 6.8 The 1915 Pleasant Valley, Nevada Earthquake · 35 km S of this epicentre
  2. 6.0 Pleasant Valley, Nevada (Foreshock) · 13 km SE of this epicentre
  3. 5.9 Near Winnemucca, Nevada · 49 km NNW of this epicentre
  4. 5.1 31 km WSW of Battle Mountain, Nevada · 31 km ESE 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 40.5869, -117.5978. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Pershing County, NV 71 km (44 mi) WSW earthquakes near Pershing County
Lander County, NV 90 km (56 mi) SSE earthquakes near Lander County
Humboldt County, NV 102 km (63 mi) NNW earthquakes near Humboldt County
Churchill County, NV 130 km (81 mi) SSW earthquakes near Churchill County
Eureka County, NV 131 km (82 mi) ESE earthquakes near Eureka County

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

Aftershocks so far

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

  1. 1.8 35 km SSE of Humboldt, Nevada
  2. 2.6 37 km ESE of Imlay, Nevada
  3. 3.1 64 km E of Lovelock, Nevada
  4. 1.7 62 km E of Lovelock, Nevada
  5. 2.9 57 km SSE of Imlay, Nevada
  6. 2.6 59 km E of Lovelock, Nevada
  7. 2.0 60 km SE of Imlay, Nevada
  8. 2.4 Nevada
  9. 2.0 65 km E of Lovelock, Nevada
  10. 1.5 62 km SE of Imlay, Nevada
  11. 3.3 53 km SE of Imlay, Nevada
  12. 2.5 45 km SE of Imlay, Nevada
  13. 3.2 11 km NW of Valmy, Nevada
  14. 1.6 24 km WSW of Battle Mountain, Nevada
  15. 2.2 57 km SE of Imlay, 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.