QuakeIndex

explosion · reviewed by a seismologist

M 2.1md

Earthquake near Moses Lake, WA

No earthquake was likely felt in Moses Lake in the 24 hours to 8:36 pm PST (04:36 UTC). The last one was M 3.3, 48 km (30 mi) SW, at 9:12 am PDT on 16 June 2019, estimated intensity II (weak) in town; 13 felt reports to USGS. Every earthquake near Moses Lake

No: USGS classifies this as a explosion, not an earthquake. A magnitude 2.1 explosion was recorded 41 km (26 mi) east of Moses Lake, WA, at 9:32 am PDT on 25 April 2019 (16:32 UTC), less than 1 km deep.

USGS: 13 km NW of Lind, Washington

9:32 am PDT, Apr 25, 2019 · · -0.4 km deep · released about 40 lb of TNT

10 km30 km60 km120 km N Adams County 18 kmGrant County 58 kmFranklin County 59 kmLincoln County 63 kmWalla Walla County 91 kmWhitman County 93 kmDouglas County 105 kmColumbia County 106 kmBenton County 110 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
9:32 am PDT on 25 April 2019 ()
Where
41 km (26 mi) east of Moses Lake, WA · earthquakes near Moses Lake
Magnitude
M 2.1 (md)
Depth
-0.4 km below the surface
Felt
no reports yet
Nearest
Adams County, 18 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2757 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 17 km (11 mi) from the epicentre. In Moses Lake, 41 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: Warden, Ritzville.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 40 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 380,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 270,000× the energy of this one
  3. Around the size people start to feel M 3.0 24× the energy of this one
  4. This earthquake M 2.1 about 40 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 47.0575, -118.7417. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Adams County, WA 18 km (11 mi) ESE earthquakes near Adams County
Grant County, WA 58 km (36 mi) WNW earthquakes near Grant County
Franklin County, WA 59 km (37 mi) SSW earthquakes near Franklin County
Lincoln County, WA 63 km (39 mi) NNE earthquakes near Lincoln County
Walla Walla County, WA 91 km (57 mi) SSE earthquakes near Walla Walla County
Whitman County, WA 93 km (58 mi) E earthquakes near Whitman County

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

Aftershocks so far

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

  1. 1.8 10 km WSW of Hatton, Washington
  2. 1.9 4 km ENE of Ritzville, Washington
  3. 1.7 5 km W of Warden, Washington
  4. 1.6 15 km SW of Odessa, Washington
  5. 1.6 9 km W of Ritzville, Washington
  6. 1.5 24 km SSW of Odessa, Washington
  7. 2.0 7 km NE of Ritzville, Washington
  8. 2.1 12 km NW of Lind, Washington
  9. 1.9 5 km W of Warden, Washington
  10. 1.8 10 km NE of Ritzville, Washington
  11. 1.7 13 km N of Kahlotus, Washington
  12. 1.5 3 km WSW of Warden, Washington
  13. 1.9 1 km WNW of Warden, Washington
  14. 1.6 16 km WNW of Lind, Washington

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.