Echinus Geyser in Yellowstone National Park, a rare acidic geyser and the largest in the world, has recently been observed ...

Echinus is the largest known acidic geyser on Earth.

Echinus Geyser saw a burst of activity in 2017, but since 2020 it has been boringly quiet. Now it's back with a bang.

Whether this activity will persist through the summer months, allowing tourists to observe, remains uncertain.

Visual observations have been a backbone of volcano research more than 2,000 years and remain fundamental to understanding ...

Social media videos showed people running into the streets as bright orange flames and smoke spewed into the sky.

A new study shows eruptions and wildfires altered the upper atmosphere, yet recent surface warming points elsewhere.

Most webcams used by the USGS Hawaiian Volcano Observatory take a snapshot every few minutes to conserve bandwidth, but three webcams are currently “livestreaming” — meaning they transmit real-time ...

Exactly 70 years ago, in March 1944, British photographer George Rodger captured the last great eruption of Italy's legendary volcano.

The geyser really came alive in fall 2017. From October 18 to November 10, 2017, Echinus consistently erupted roughly about every two to three hours. The activity then stopped with only one eruption ...