QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

Earthquake near Pioche, NV

USGS: 6 km NNW of Pioche, Nevada

6:33 am PDT, Jul 21, 2019 · · 3.3 km deep · released about 680 lb of TNT

Every earthquake near Pioche Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lincoln County 50 kmIron County 104 kmBeaver County 117 kmWashington County 119 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
6:33 am PDT on 21 July 2019 ()
Where
6 km (4 mi) NNW of Pioche, NV · earthquakes near Pioche
Magnitude
M 2.9 (ml)
Depth
3.3 km below the surface
Felt
4 reports · strongest reported intensity IV
Nearest
Lincoln County, 50 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2555 days ago

A magnitude 2.9 earthquake was recorded 6 km (4 mi) NNW of Pioche, NV, at 6:33 am PDT on 21 July 2019 (13:33 UTC). 4 people have reported feeling it to USGS. This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 4.2 on 2019-06-30 — about 89 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.0 48 km W of Pioche, Nevada · 45 km W 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 37.9775, -114.4869. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lincoln County, NV 50 km (31 mi) SW earthquakes near Lincoln County
Iron County, UT 104 km (64 mi) E earthquakes near Iron County
Beaver County, UT 117 km (73 mi) ENE earthquakes near Beaver County
Washington County, UT 119 km (74 mi) SE earthquakes near Washington County
Millard County, UT 160 km (100 mi) NE earthquakes near Millard County

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

Aftershocks so far

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

  1. 1.9 32 km NNW of Pioche, Nevada
  2. 1.7 24 km WSW of Pioche, Nevada
  3. 2.2 14 km NW of Beaverdam, Nevada
  4. 1.9 7 km E of Panaca, Nevada
  5. 2.6 25 km NNE of Ursine, Nevada
  6. 2.2 15 km WNW of Pioche, Nevada
  7. 2.4 26 km NNE of Ursine, Nevada
  8. 2.9 35 km ENE of Hiko, Nevada
  9. 1.7 7 km E of Panaca, Nevada
  10. 1.7 7 km ENE of Panaca, Nevada
  11. 1.6 19 km ESE of Ursine, Nevada
  12. 1.5 8 km ESE of Panaca, Nevada
  13. 2.2 7 km ESE of Panaca, Nevada
  14. 2.7 9 km ENE of Panaca, Nevada
  15. 1.7 29 km WSW of Pioche, 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.