The largest acidic geyser in the world, Echinus Geyser, is active again, with eruptions occurring every 2 to 5 hours, according to the USGS.

Remember when a little puddle of green water was spotted in Halema‘uma‘u? Time flies, because that was late July 2019 — over five years ago! And because we’ve had multiple eruptions and intrusions ...

HONOLULU, Hawaii (AP) — Residents on Hawaii's Big Island are being told to stay indoors Monday after the U.S. Geological Survey reports the Kilauea volcano has erupted. Video from W rim of the caldera ...

Echinus Geyser in Yellowstone National Park, a rare acidic geyser and the largest in the world, has recently been observed actively erupting again for the first time since 2020.