Volcanic eruption
See 1850 on the mapEruption of St. Helens
Mar 1850 – May 1850 · 46.20° N, 122.18° W
Mount St. Helens is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States. It lies 52 miles (83 km) northeast of Portland, Oregon, and 98 miles (158 km) south of Seattle.
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What the records say
- When
- Mar 1850 – May 1850
- Kind
- Volcanic eruption
- Coordinates
- 46.20° N, 122.18° W
- Vei
- 2
- Vent
- North flank
- Dated by
- Observations: Reported
- Volcano number
- 321050
- Eruption number
- 20551
- Vei modifier
- ?
Nearby in time and place
- Cayuse War1847 · War
- Killing of Robert S. Maynard1852 · Murder
- Oregon Country: United Kingdom → United States (cession)1846 · Territorial change
- Battle of Union Gap9 Nov 1855 · Battle
- Battle of Toppenish Creek5 Oct 1855 · Battle
- Treaty of Point Elliott1855 · Treaty
- Whitman massacre29 Nov 1847 · Massacre · Deaths 13
- Battle of Seattle26 Jan 1856 · Battle
The source
- Smithsonian GVP Volcanoes of the World: Holocene eruptionsGlobal Volcanism Program, Smithsonian InstitutionSmithsonian terms of use: personal, educational and non-commercial use, with creditGlobal Volcanism Program, Smithsonian Institution: Volcanoes of the World v5.3, https://doi.org/10.5479/si.GVP.VOTW5-2025.5.3Source page