QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

Earthquake near Peaceful Valley, WA

No earthquake was likely felt in Peaceful Valley in the 24 hours to 1:07 am PST (09:07 UTC). The last one was M 1.8, 10 km (6 mi) NE, at 1:48 pm PDT on 12 August 2026, estimated intensity II (weak) in town. Every earthquake near Peaceful Valley

This page: a magnitude 2.0 earthquake was recorded 4 km (3 mi) south-southwest of Peaceful Valley, WA, at 8:47 am PDT on 31 March 2021 (15:47 UTC), 21 km deep. 13 people have reported feeling it to USGS.

USGS: 3 km WSW of Kendall, Washington

27 km (17 mi) NE of Bellingham, WA · 143 km (89 mi) N of Seattle, WA

8:47 am PDT, Mar 31, 2021 · · 21 km deep · released about 30 lb of TNT

10 km30 km60 km120 km N Whatcom County 26 kmSkagit County 53 kmSan Juan County 81 kmIsland County 90 kmSnohomish County 99 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
8:47 am PDT on 31 March 2021 ()
Where
4 km (3 mi) south-southwest of Peaceful Valley, WA · earthquakes near Peaceful Valley
Magnitude
M 2.0 (ml)
Depth
21 km below the surface
Felt
13 reports · strongest reported intensity IV
Nearest
Whatcom County, 26 km ESE
Nearest mapped fault
Boulder Creek-Canyon Creek fault, 3 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1984 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. In Peaceful Valley, 4 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: Nooksack, Everson, Sumas, Lynden, Sudden Valley, Geneva.

How big was it?

This earthquake released about 30 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 5.8 500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 350,000× the energy of this one
  3. Around the size people start to feel M 3.0 32× the energy of this one
  4. This earthquake M 2.0 about 30 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 lists one earthquake of M5 or more within 50 km:

  1. 5.0 4 km ENE of Deming, Washington · 6 km S of this epicentre

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 48.9023, -122.1753. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Whatcom County, WA 26 km (16 mi) ESE earthquakes near Whatcom County
Skagit County, WA 53 km (33 mi) SSE earthquakes near Skagit County
San Juan County, WA 81 km (50 mi) WSW earthquakes near San Juan County
Island County, WA 90 km (56 mi) SSW earthquakes near Island County
Snohomish County, WA 99 km (61 mi) SSE earthquakes near Snohomish County
Chelan County, WA 163 km (101 mi) SE earthquakes near Chelan County

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

Aftershocks so far

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

  1. 1.9 5 km S of Acme, Washington
  2. 1.7 Washington
  3. 1.5 9 km ENE of Abbotsford, Canada
  4. 1.6 9 km ENE of Abbotsford, Canada
  5. 1.6 British Columbia, Canada
  6. 2.1 Washington
  7. 2.2 8 km NE of Marietta-Alderwood, Washington
  8. 1.7 12 km SW of Chilliwack, Canada
  9. 2.3 6 km NW of Sedro-Woolley, Washington
  10. 1.7 6 km NW of Sedro-Woolley, Washington
  11. 1.8 8 km NE of Abbotsford, Canada
  12. 2.6 3 km NNW of Sedro-Woolley, Washington
  13. 2.0 5 km E of Deming, Washington
  14. 1.5 7 km NW of Lynden, Washington
  15. 1.5 16 km SSE of Glacier, 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.