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The USGS Hawaiian Volcano Observatory (HVO) has an extensive network of instruments that helps us monitor how the ground deforms due to magma moving...

Kīlauea's lower East Rift Zone

Kīlauea Volcano’s lower East Rift Zone

Kīlauea summit

Kīlauea lower East Rift Zone

Over the past 8 months, Yellowstone Caldera Chronicles articles have explored many topics about Yellowstone, from the history of the Park to recent...

Many Island of Hawai‘i residents are familiar with the volcanic air pollution known as "vog." The main culprit in the formation of vog is sulfur...

Kīlauea summit

Kīlauea lower East Rift Zone

Kīlauea Volcano’s lower East Rift Zone