QuakeIndex

explosion · reviewed by a seismologist

M 1.8ml

Earthquake near Ely, NV

No earthquake was likely felt in Ely in the 24 hours to 9:33 pm PST (05:33 UTC). The last one was M 3.5, 49 km (30 mi) SW, at 5:55 am PST on 8 November 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Ely

No: USGS classifies this as a explosion, not an earthquake. A magnitude 1.8 explosion was recorded 14 km (9 mi) west-northwest of Ely, NV, at 1:36 pm PDT on 23 April 2018 (20:36 UTC), less than 1 km deep.

USGS: 4 km W of Ruth, Nevada

1:36 pm PDT, Apr 23, 2018 · · 0.0 km deep · released about 15 lb of TNT

10 km30 km60 km120 km N White Pine County 20 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
1:36 pm PDT on 23 April 2018 ()
Where
14 km (9 mi) west-northwest of Ely, NV · earthquakes near Ely
Magnitude
M 1.8 (ml)
Depth
0.0 km below the surface
Felt
no reports yet
Nearest
White Pine County, 20 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3125 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 Ely, 14 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: McGill.

USGS catalogues this as explosion, not an earthquake.

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 since 1900 lists no earthquake of M5 or more within 50 km.

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 39.2774, -115.0443. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
White Pine County, NV 20 km (12 mi) NE earthquakes near White Pine County
Eureka County, NV 131 km (81 mi) NW earthquakes near Eureka County

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

Aftershocks so far

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

  1. 2.9 6 km S of Ruth, Nevada
  2. 2.1 9 km N of Ely, Nevada
  3. 1.8 3 km WSW of Ruth, Nevada
  4. 1.7 6 km S of Ruth, Nevada
  5. 2.1 39 km NW of Ruth, Nevada
  6. 2.9 8 km SW of Ely, Nevada
  7. 2.3 4 km ENE of Ruth, Nevada
  8. 1.6 5 km W of Ruth, Nevada
  9. 1.8 3 km WSW of Ruth, Nevada
  10. 1.9 4 km W of Ruth, Nevada
  11. 2.1 10 km SW of Ely, Nevada
  12. 2.1 0 km SW of Ruth, Nevada
  13. 1.5 2 km WSW of Ruth, Nevada
  14. 2.7 11 km N of McGill, Nevada
  15. 2.1 7 km W of Ruth, 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.