The primary caldera and lava flows are contained within Wyoming. Because the caldera is in Wyoming, the Wyoming Office of Homeland Security plays a key role in local emergency planning.
Yellowstone Volcano State Map Guide: Wyoming's Key Role in Preparedness
Seismic networks detect tiny earthquakes, while satellite-based radar measures ground deformation. In the event of increased seismic activity or ground deformation, the Wyoming state government works in tandem with federal agencies like the USGS.
State lines are largely administrative, as the magma chamber does not adhere to borders. Eruptions in the past have deposited ash across multiple states.
Yellowstone Volcano State Map Guide: Wyoming at the Core
Jurisdiction and Preparedness Jurisdiction dictates which agency is responsible for disaster response. Current seismic activity is tracked regardless of state boundaries.
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