QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

13 km ENE of Verlot, Washington

· 10 km deep · released about 7.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Snohomish County 14 kmSkagit County 44 kmKing County 72 kmChelan County 79 kmIsland County 79 kmWhatcom County 82 kmKitsap County 95 kmSan Juan County 119 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
Magnitude
M 1.6 (ml)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Snohomish County, 14 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 900 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 7.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 7.8 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.

Where

Epicentre 48.1235, -121.6063. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Snohomish County, WA 14 km (9 mi) ENE of here earthquakes near Snohomish County
Skagit County, WA 44 km (27 mi) SSE of here earthquakes near Skagit County
King County, WA 72 km (45 mi) NNE of here earthquakes near King County
Chelan County, WA 79 km (49 mi) WNW of here earthquakes near Chelan County
Island County, WA 79 km (49 mi) E of here earthquakes near Island County
Whatcom County, WA 82 km (51 mi) SSE of here earthquakes near Whatcom County

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

Aftershocks so far

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

  1. 1.8 4 km NE of Woods Creek, Washington
  2. 2.5 3 km WSW of Concrete, Washington
  3. 1.5 2 km ENE of Granite Falls, Washington
  4. 1.7 6 km NNW of North Sultan, Washington
  5. 2.0 3 km S of Monroe, Washington
  6. 3.0 4 km ESE of Cathcart, Washington
  7. 1.7 3 km E of Granite Falls, Washington
  8. 2.4 8 km N of North Sultan, Washington
  9. 1.7 4 km WSW of Concrete, Washington
  10. 2.9 4 km WSW of Concrete, Washington
  11. 2.6 4 km WSW of Concrete, Washington
  12. 1.5 0 km W of Snohomish, Washington
  13. 1.5 4 km WSW of Concrete, Washington
  14. 1.7 2 km ENE of Granite Falls, Washington
  15. 1.7 1 km E 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.6 on 2019-07-12 — it released about 29,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.