QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Chelan, WA

No earthquake was likely felt in Chelan in the 24 hours to 3:18 am PST (11:18 UTC). The last one was M 1.7, 8 km (5 mi) WSW, at 8:10 am PDT on 20 August 2026, estimated intensity II (weak) in town. Every earthquake near Chelan

This page: a magnitude 1.7 earthquake was recorded 38 km (24 mi) northwest of Chelan, WA, at 2:15 am PDT on 1 May 2026 (09:15 UTC), 9.5 km deep.

USGS: 23 km NW of Granite Falls, Washington

2:15 am PDT, May 1, 2026 · · 9.5 km deep · released about 12 lb of TNT

10 km30 km60 km120 km N Chelan County 28 kmDouglas County 64 kmOkanogan County 73 kmSnohomish County 101 kmKittitas County 106 kmSkagit County 115 kmGrant County 118 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
2:15 am PDT on 1 May 2026 ()
Where
38 km (24 mi) northwest of Chelan, WA · earthquakes near Chelan
Magnitude
M 1.7 (ml)
Depth
9.5 km below the surface
Felt
no reports yet
Nearest
Chelan County, 28 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 196 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 9 km (6 mi) from the epicentre. In Chelan, 38 km away, the estimate is intensity I (not felt). 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: Manson.

How big was it?

This earthquake released about 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 870,000× the energy of this one
  3. Around the size people start to feel M 3.0 78× the energy of this one
  4. This earthquake M 1.7 about 12 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 48.0638, -120.4027. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Chelan County, WA 28 km (17 mi) SW earthquakes near Chelan County
Douglas County, WA 64 km (40 mi) SE earthquakes near Douglas County
Okanogan County, WA 73 km (45 mi) NE earthquakes near Okanogan County
Snohomish County, WA 101 km (63 mi) W earthquakes near Snohomish County
Kittitas County, WA 106 km (66 mi) S earthquakes near Kittitas County
Skagit County, WA 115 km (71 mi) WNW earthquakes near Skagit 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. 1.2 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. 0.8 40 km WSW of Winthrop, Washington
  5. 1.5 41 km WSW of Winthrop, Washington
  6. 1.6 41 km WSW of Winthrop, Washington
  7. 2.5 41 km WSW of Winthrop, Washington
  8. 2.1 4 km NW of Waterville, Washington
  9. 0.9 5 km ENE of Entiat, Washington
  10. 2.3 4 km NW of Waterville, Washington
  11. 1.7 7 km WSW of Chelan, Washington
  12. 1.6 12 km W of Entiat, Washington
  13. 1.6 13 km WSW of Winthrop, Washington
  14. 1.9 10 km SSW of Granite Falls, 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.