Since February 7, Echinus Geyser in Yellowstone National Park has resumed its eruptive activity, marking the first such occurrence since 2017. Initially, eruptions were separated by several days, but they have progressed to intervals of every 2 to 5 hours, each lasting a few minutes and reaching heights of 20 to 30 feet (6 to 10 meters). This geyser, known for its acidic waters, is part of the Norris Geyser Basin, which is characterized by its unique geological features.
Yellowstone, straddling Wyoming, Montana, and Idaho, is the first national park in the United States and sits atop one of North America's largest volcanic systems. The park's geysers, including the famous Old Faithful and Steamboat, are driven by a combination of heated water and pressurized gases. The U.S. National Park Service states that these natural hot springs require specific conditions to form.
The Echinus Geyser's acidic nature makes it uncommon, as such conditions typically damage geyser plumbing systems. However, a balance of neutral waters at Echinus allows it to thrive, preserving its structure. This unique water chemistry contributes to the formation of distinctive red, silica-coated rocks surrounding the geyser.