QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

Earthquake near Entiat, WA

No earthquake was likely felt in Entiat in the 24 hours to 5:03 pm PST (01:03 UTC). The last one was M 2.1, 7 km (4 mi) E, at 1:09 am PDT on 4 October 2026, estimated intensity II (weak) in town; 3 felt reports to USGS. Every earthquake near Entiat

This page: a magnitude 2.0 earthquake was recorded 18 km (11 mi) west of Entiat, WA, at 1:55 am PST on 14 December 2021 (09:55 UTC), 7.4 km deep. 1 person has reported feeling it to USGS.

USGS: 18 km W of Entiat, Washington

1:55 am PST, Dec 14, 2021 · · 7.4 km deep · released about 31 lb of TNT

10 km30 km60 km120 km N Chelan County 23 kmDouglas County 57 kmKittitas County 65 kmGrant County 91 kmKing County 106 kmSnohomish County 106 kmOkanogan County 109 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
1:55 am PST on 14 December 2021 ()
Where
18 km (11 mi) west of Entiat, WA · earthquakes near Entiat
Magnitude
M 2.0 (ml)
Depth
7.4 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Chelan County, 23 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1722 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 Entiat, 18 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: Cashmere, Leavenworth, Sunnyslope, West Wenatchee, Waterville.

How big was it?

This earthquake released about 31 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 480,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 340,000× the energy of this one
  3. Around the size people start to feel M 3.0 31× the energy of this one
  4. This earthquake M 2.0 about 31 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 47.6892, -120.4488. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Chelan County, WA 23 km (14 mi) NNW earthquakes near Chelan County
Douglas County, WA 57 km (35 mi) E earthquakes near Douglas County
Kittitas County, WA 65 km (40 mi) SSW earthquakes near Kittitas County
Grant County, WA 91 km (56 mi) SE earthquakes near Grant County
King County, WA 106 km (66 mi) WSW earthquakes near King County
Snohomish County, WA 106 km (66 mi) WNW earthquakes near Snohomish County

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

Aftershocks so far

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

  1. 1.2 2 km WNW of Entiat, Washington
  2. 0.4 2 km WNW of Entiat, Washington
  3. 0.8 1 km N of Entiat, Washington
  4. 0.4 6 km SSW of Entiat, Washington
  5. 2.1 4 km NW of Waterville, Washington
  6. 0.9 5 km ENE of Entiat, Washington
  7. 2.3 4 km NW of Waterville, Washington
  8. 1.7 7 km WSW of Chelan, Washington
  9. 1.6 12 km W of Entiat, Washington
  10. 1.9 10 km SSW of Granite Falls, Washington
  11. 1.7 23 km NW of Granite Falls, Washington
  12. 1.5 7 km SSE of Chelan Falls, Washington
  13. 1.8 7 km W of Entiat, Washington
  14. 2.5 4 km NW of Waterville, Washington
  15. 1.6 15 km WSW of Methow, 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.