PNSN | Pacific Northwest Seismic Network

Recent Earthquakes

Earthquakes Near Volcanoes

Volcano	Earthquakes
Rainier
St. Helens
Hood
	30 Days Ago Now

Volcanoes without recent seismicity

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

Most Recent Earthquakes

Mag	Location	Age
3.2	54 km NE of Valmy, NV	3 h
1.6	13.5 km from Satsop, WA	9 h
0.8	5.2 km from Mt St Helens, WA	10 h
0.1	1.6 km from Mt St Helens, WA	12 h
0.8	15.4 km from Morton, WA	13 h
0.3	2.8 km from Mt St Helens, WA	14 h
1.7	24.6 km from Olympia, WA	15 h
2.8	53 km NE of Valmy, NV	19 h
3.7	59 km NE of Valmy, NV	19 h
2.8	49 km W of Petrolia, CA	20 h
2.8	47 km NE of Valmy, NV	22 h
2.7	56 km NE of Valmy, NV	22 h
2.8	51 km NE of Valmy, NV	23 h
3.8	52 km NE of Valmy, NV	23 h
4.0	51 km NE of Valmy, NV	23 h
0.0	1.0 km from Mt St Helens, WA	24 h
3.1	57 km NE of Valmy, NV	1 d
2.7	52 km NE of Valmy, NV	1 d
3.1	51 km NE of Valmy, NV	1 d
-0.1	1.2 km from Mt St Helens, WA	1 d
2.6	49 km NE of Valmy, NV	1 d
3.1	56 km NE of Valmy, NV	1 d
3.1	55 km NNW of Carlin, NV	1 d
3.2	52 km NE of Valmy, NV	1 d
4.0	61 km NNE of Valmy, NV	1 d
4.8	51 km NE of Valmy, NV	1 d
1.7	20.1 km from Olympia, WA	1 d
1.9	34.9 km from Goat Rocks, WA	1 d
2.2	3.4 km from Enumclaw, 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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