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Explore Search: Volcano hydrothermal systems

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Pleistocene hydrothermal activity on Brokeoff volcano and in the Maidu volcanic center, Lassen Peak area, northeast California: Evolution of magmatic-hydrothermal systems on stratovolcanoes

Center News
A steaming hot spring and stream flow through the yellow-and-white altered rock of a hydrothermal area. A raised walkway is visible in the background.

Lassen Volcanic Center's June 24, 2024 earthquake swarm: (Background) business as usual

Research
Hydrothermal system and water flow in the subsurface beneath Long V...

Hydrothermal Monitoring at Long Valley Caldera

publication
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Seismicity and fluid geochemistry at Lassen Volcanic National Park, California: Evidence for two circulation cells in the hydrothermal system

publication
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Potential for increased hydrothermal arsenic flux during volcanic unrest: Implications for California water supply

Featured Films and Shorts

Inside USGS, No. 3, Robert Fournier, Yellowstone

Featured Films and Shorts

Inside USGS No. 1, Robert Christiansen, Yellowstone

Presentations and Events

PubTalk 04/2015—"Fearfully Grand" Eruptions: Lassen Peak, CA, 1914-17

publication
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Volcano hazards assessment for the Lassen region, northern California

Presentations and Events

PubTalk 7/2018— Extreme acid mine drainage at Iron Mountain California

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