PNSN | Pacific Northwest Seismic Network

Recent Earthquakes

Earthquakes Near Volcanoes

Volcano	Earthquakes
St. Helens
Hood
Rainier
Adams
	30 Days Ago Now

Volcanoes without recent seismicity

Baker, Crater Lake, Glacier Peak, Jefferson, Newberry, Three Sisters

Most Recent Earthquakes

Mag	Location	Age
2.2	21 km W of Petrolia, CA	1 h
0.4	11.5 km from Mt Rainier, WA	3 h
2.5	20 km W of Petrolia, CA	9 h
1.2	9.6 km from Mount Vernon, WA	10 h
0.9	28.9 km from Wenatchee, WA	11 h
1.2	36.3 km from Deming, WA	11 h
1.5	20.0 km from Woodburn, OR	11 h
2.4	43 km W of Petrolia, CA	12 h
1.3	21.7 km from Newberg, OR	13 h
0.7	16.8 km from North Bend, WA	13 h
2.9	52 km NE of Valmy, NV	14 h
0.9	21.0 km from Mt St Helens, WA	15 h
1.2	18.8 km from Olympia, WA	15 h
2.0	12 km NW of Covelo, CA	16 h
3.7	52 km NE of Valmy, NV	17 h
2.6	54 km NE of Valmy, NV	17 h
3.3	53 km NNE of Valmy, NV	18 h
0.1	5.8 km from Mt St Helens, WA	18 h
-0.1	2.5 km from Mt St Helens, WA	20 h
2.1	18 km WNW of Brooktrails, CA	21 h
0.7	9.0 km from Mt St Helens, WA	22 h
2.3	21 km W of Petrolia, CA	22 h
-0.1	0.4 km from Mt St Helens, WA	22 h
1.4	15.2 km from Seattle, WA	23 h
-0.8	1.9 km from Mt Hood, OR	1 d
0.2	0.3 km from Mt St Helens, WA	1 d
2.6	60 km NE of Valmy, NV	1 d
0.4	2.8 km from Mt Hood, OR	1 d
1.6	5.6 km from Bremerton, WA	1 d

Seismo Blog

Understanding Earthquake Numbers: Our studies of Mount Rainier earthquakes

Mount Rainier earthquake swarm of July, 2025: Update as of July 31. Summary information for this swarm

Bob Crosson has passed away: The founder of the PNSN, Professor Emeritus Robert (Bob) Crosson died on April 29 at age 86.

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