A gigantic bulge in the north rim of the Yellowstone caldera is the latest sign of volcanic activity in the national park.
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USGS says Yellowstone has risen 1 inch since July, echoing pattern before its biggest post-1980 quake
Yellowstone’s restless ground is on the move again. Since July 2025, instruments on the park’s north rim have recorded ...
Scientists are monitoring a city of Chicago-sized swath of rising ground at the northern volcanic rim of the Yellowstone ...
Yellowstone is a dynamic geologic system—the one constant is change. This is demonstrated daily by hydrothermal activity ...
“Yellowstone is a dynamic geologic system – the one constant is change.” So wrote Michael Poland, a geophysicist with the US ...
Yellowstone National Park sits above one of the most extensively studied volcanic systems on Earth. Beneath its forests, geyser basins and river valleys lies a vast accumulation of partially molten ...
Learn more about the past eruptions at Yellowstone National Park and how each new eruption displaced evidence of the past.
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