QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Pioche, NV

USGS: 7 km ENE of Panaca, Nevada

4:23 am PDT, Jul 18, 2019 · · 7.6 km deep · released about 15 lb of TNT

Every earthquake near Pioche Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lincoln County 53 kmIron County 88 kmWashington County 94 kmBeaver County 111 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
4:23 am PDT on 18 July 2019 ()
Where
19 km (12 mi) SE of Pioche, NV · earthquakes near Pioche
Magnitude
M 1.8 (ml)
Depth
7.6 km below the surface
Felt
no reports yet
Nearest
Lincoln County, 53 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2633 days ago

A magnitude 1.8 earthquake was recorded 19 km (12 mi) SE of Pioche, NV, at 4:23 am PDT on 18 July 2019 (11:23 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Caliente.

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

The largest earthquake within 50 km since 2016 was M 4.2 on 2016-01-15 — about 4,600 times the energy of this one.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 5.9 38 km ESE of Caliente, Nevada · 44 km SSE of this epicentre
  2. 5.3 36 km SE of Caliente, Nevada · 46 km SSE of this epicentre
  3. 5.2 36 km SE of Caliente, Nevada · 46 km SSE 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 37.8071, -114.3020. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lincoln County, NV 53 km (33 mi) WSW earthquakes near Lincoln County
Iron County, UT 88 km (55 mi) E earthquakes near Iron County
Washington County, UT 94 km (58 mi) SE earthquakes near Washington County
Beaver County, UT 111 km (69 mi) ENE earthquakes near Beaver County

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

Aftershocks so far

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

  1. 2.1 15 km NW of Beryl Junction, Utah
  2. 1.8 30 km W of Enterprise, Utah
  3. 2.4 18 km WNW of Beryl Junction, Utah
  4. 2.3 29 km ESE of Caliente, Nevada
  5. 1.9 33 km W of Enterprise, Utah
  6. 1.9 9 km ENE of Panaca, Nevada
  7. 1.6 33 km SE of Beaverdam, Nevada
  8. 1.9 32 km WSW of Enterprise, Utah
  9. 1.5 Nevada
  10. 1.9 7 km E of Panaca, Nevada
  11. 2.1 18 km NW of Beryl Junction, Utah
  12. 1.5 7 km E of Panaca, Nevada
  13. 1.5 32 km W of Enterprise, Utah
  14. 2.1 24 km SE of Caliente, Nevada
  15. 1.6 21 km SSW of Caliente, 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.