QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

11 km NE of Maple Ridge, Canada

· 9.0 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Whatcom County 68 kmSan Juan County 97 kmSkagit County 101 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 2.3 (ml)
Depth
9.0 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Whatcom County, 68 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1859 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 49.2845, -122.4882. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Whatcom County, WA 68 km (42 mi) NW of here earthquakes near Whatcom County
San Juan County, WA 97 km (61 mi) NNE of here earthquakes near San Juan County
Skagit County, WA 101 km (63 mi) NNW of here earthquakes near Skagit 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. 1.6 7 km SSW of Chilliwack, Canada
  2. 2.3 3 km SE of Aldergrove East, Canada
  3. 1.5 13 km NE of Coquitlam, Canada
  4. 1.6 10 km N of Maple Falls, Washington
  5. 1.5 11 km E of Mission, Canada
  6. 1.6 10 km NE of Abbotsford, Canada
  7. 1.5 12 km W of Chilliwack, Canada
  8. 1.5 10 km E of Mission, Canada
  9. 1.5 11 km ENE of Mission, Canada
  10. 1.8 2 km E of Peaceful Valley, Washington
  11. 2.3 28 km NNE of Maple Ridge, Canada
  12. 1.7 10 km NNE of Maple Falls, Washington
  13. 1.5 10 km ENE of Coquitlam, Canada
  14. 1.5 9 km WSW of Chilliwack, Canada
  15. 1.7 8 km E of Ferndale, 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.