Earthquake · reviewed by a seismologist
M 1.6ml
1 km NE of Maple Ridge, Canada
Yes. A magnitude 1.6 earthquake was recorded 1 km NE of Maple Ridge, Canada, 54 km (33 mi) N of Bellingham, WA, at 4:39 pm PDT on 5 April 2021 (23:39 UTC), 8.6 km deep.
54 km (33 mi) N of Bellingham, WA · 143 km (89 mi) NNW of Everett, WA
- When
- Magnitude
- M 1.6 (ml)
- Depth
- 8.6 km below the surface
- Felt
- no reports yet
- Nearest
- Whatcom County, 70 km SE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2047 days ago
Earthquake alerts for Blaine, WA
Get a notification in this browser when USGS records an earthquake near Blaine, WA. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 6 km (4 mi) from the epicentre. 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: Blaine.
How big was it?
This earthquake released about 6.6 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.
- Mineral, Virginia 2011 M 5.8 2,300,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
- Around the size people start to feel M 3.0 140× the energy of this one
- This earthquake M 1.6 about 6.6 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 49.2280, -122.5915. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Whatcom County, WA | 70 km (43 mi) | SE | earthquakes near Whatcom County |
| San Juan County, WA | 88 km (55 mi) | SSW | earthquakes near San Juan County |
| Skagit County, WA | 99 km (62 mi) | SE | earthquakes near Skagit County |
| Island County, WA | 119 km (74 mi) | S | earthquakes near Island County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
55 earthquakes have been recorded within 50 km since this one.
- 1.6 10 km NE of Abbotsford, Canada
- 1.7 2 km WSW of Point Roberts, Washington
- 1.6 2 km W of Point Roberts, Washington
- 1.5 12 km W of Chilliwack, Canada
- 1.5 10 km E of Mission, Canada
- 1.5 11 km ENE of Mission, Canada
- 1.8 2 km E of Peaceful Valley, Washington
- 2.3 28 km NNE of Maple Ridge, Canada
- 1.7 10 km NNE of Maple Falls, Washington
- 1.5 10 km ENE of Coquitlam, Canada
- 1.6 2 km SSW of Ferndale, Washington
- 1.8 2 km SSW of Ferndale, Washington
- 1.5 9 km WSW of Chilliwack, Canada
- 1.6 4 km NE of Bellingham, Washington
- 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.