In early February, the Echinus geyser, located in Yellowstone National Park, started to show significant activity as its surface vibrated and it began ejecting more water into the drainage system. Since February 16th, this geyser has been erupting at intervals of every two to five hours, with each eruption lasting approximately two to three minutes. The height of the eruptions has reached up to ten meters, indicating a peak in its geothermal activity during this period.

Geologists have reported that the geyser's activity is expected to decrease as the summer tourism season approaches, likely influencing visitor experiences in Yellowstone. Geysers like Echinus, known for their acidic nature, are considered rare phenomena due to the unique composition of their water, which can typically erode the surrounding rock structure. However, what makes Echinus stand out is that its eruptions consist of acidic gases and neutral water, meaning there isn't enough acidity to harm the nearby rocks.

Additionally, the unusual chemical composition of the water has led to intriguing formations and colors around the geyser's pool, which is approximately 20 meters in diameter and covered with spiky siliceous rocks. The reddish color of the pool suggests the presence of iron, aluminum, and arsenic. Echinus geyser is part of the highly active Norris Geyser Basin, which is notable for its geothermal features.