In a startling incident at Yellowstone National Park, visitors were forced to hastily evacuate as a massive hydrothermal explosion sent steam and debris shooting into the air. Dramatic videos captured the moment dozens of people fled in panic as a towering column of grey mud erupted from the ground, propelling rocks and scalding water high above Biscuit Basin.

Thankfully, no injuries were reported by the National Parks Service, although the blast caused damage to the nearby boardwalk and benches. As a precautionary measure, the service promptly closed off the area, located a few miles from the iconic Old Faithful geyser.

A photograph by the US Geological Survey revealed the extensive aftermath of the eruption, showcasing a vast expanse of grey debris that had been forcefully expelled. According to the survey, hydrothermal explosions occur when water rapidly turns into steam within a shallow hydrothermal system, leading to the explosive expansion of steam and the subsequent disintegration of surrounding rocks. These eruptions can eject boiling water, steam, mud, and rock fragments, reaching astounding heights of up to 1.2 miles (2km) and leaving behind massive craters.

The ejected material, referred to as breccia, primarily consists of angular rocks held together by clay. The survey further noted that hydrothermal explosions can present significant localized hazards, capable of causing damage to or even the destruction of thermal features in the area. Importantly, such eruptions at Yellowstone are unrelated to volcanic activity.

This is not the first time Biscuit Basin has experienced similar disturbances, as documented incidents occurred in 2009, 1991, and following an earthquake in 1959. The occurrence of these violent events serves as a stark reminder of the unpredictable nature of the park's hydrothermal systems.

As Yellowstone National Park remains a cherished location for both international and domestic visitors, authorities will continue to closely monitor the situation and take necessary measures to ensure public safety.