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.

Echinus Geyser in Yellowstone National Park’s Norris Geyser Basin is erupting again for the first time since 2020, after renewed activity began in early Februar ...

Echinus is the largest known acidic geyser on Earth.

The world’s largest acidic geyser has erupted in Yellowstone National Park after remaining largely dormant since 2017. The acidic geyser is located in the back basin of the park’s Norris Geyser Basin ...

Yellowstone has documented an eruption from its Echinus Geyser, which slowly ceased erupting in the decades leading up to it's last 20217 show.

Viral videos claim animals are fleeing Yellowstone before an eruption. Experts, park officials, and Snopes say the claims are ...

Discover the real consequences if Yellowstone erupted right now. From global climate disruption to massive economic and food supply impacts, explore how the world would respond.

Echinus Geyser, the world’s largest acidic geyser, suddenly burst back to life in Yellowstone last month after being dormant for five years. Once called ...

Learn how geologists at Yellowstone National Park clean up hot springs filled with litter, saving them from irrevocable damage.

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