Thielsen Volcano
Updated: Aug 19, 2025 16:45 GMT -
Shield
Oregon, United States, 43.15°N / -122.07°W 
Summit height: 2799 m / 9183 ft
Current status: (probably) extinct (0 out of 5)
[smaller] [larger]
Thielsen volcano eruptions: None during the past 10,000 years
Less than few million years ago (Pleistocene)
Latest nearby earthquakes
| Date and Time | Mag / Depth | Distance / Location | |||
|---|---|---|---|---|---|
Background
The eroded central plug of Mount Thielsen forms a prominent summit spire known as the "Lightning Rod of the Cascades." The heavily eroded volcano is Potassium-Argon dated about 0.29 million years ago (Sherrod, in Wood and Kienle 1990). Pre-Thielsen shield volcanoes lie to the east and NE and pyroclastic cones to the south and SW.---
Source: Smithsonian / GVP volcano information
Latest satellite images
Thielsen Volcano Maps
Below is a selection of maps showing the location and surroundings of the volcano at various resolutions based on aerial-imagery / terrain maps. Feel free to use them for non-commercial purposes on your blog or website as long as you credit them with a link back to this page (click to copy it).
Satellite/aerial-type map of Thielsen volcano (world scale)
Terrain-type map of Thielsen volcano (world scale)
Satellite/aerial-type map of Thielsen volcano (region scale large)
Terrain-type map of Thielsen volcano (region scale large)
Satellite/aerial-type map of Thielsen volcano (region scale medium)
Terrain-type map of Thielsen volcano (region scale medium)
Satellite/aerial-type map of Thielsen volcano (region scale small)
Terrain-type map of Thielsen volcano (region scale small)
Satellite/aerial-type map of Thielsen volcano (local scale large)
Terrain-type map of Thielsen volcano (local scale large)
Satellite/aerial-type map of Thielsen volcano (local scale medium)
Terrain-type map of Thielsen volcano (local scale medium)
Satellite/aerial-type map of Thielsen volcano (local scale small)
Terrain-type map of Thielsen volcano (local scale small)
Satellite/aerial-type map of Thielsen volcano (scale of 10s of km)
Terrain-type map of Thielsen volcano (scale of 10s of km)
Satellite/aerial-type map of Thielsen volcano (scale of 20-40 km)
Terrain-type map of Thielsen volcano (scale of 20-40 km)
Satellite/aerial-type map of Thielsen volcano (scale of approx. 10-20 km)
Terrain-type map of Thielsen volcano (scale of approx. 10-20 km)
Satellite/aerial-type map of Thielsen volcano (scale of 5-10 km)
Satellite/aerial-type map of Thielsen volcano (scale of few kilometers)
