PYROCLASTIC FLOW A pyroclastic flow is a fast-moving current of extremely hot gas, volcanic ash, and rock fragments that rushes down the slopes of a volcano during explosive eruptions. These flows can reach speeds of over 320 km/h and temperatures exceeding 1,000 °C, making them one of the most dangerous volcanic hazards. Unlike lava flows, pyroclastic flows can travel great distances, destroy everything in their path, and cause widespread devastation due to their speed, heat, and suffocating as

This 7x-speed footage captures a massive pyroclastic flow racing down Indonesia’s Mount Semeru as the volcano unleashed a powerful eruption. | AccuWeather

A pyroclastic flow, consisting of solidified lava pieces, volcanic ash, and hot gases, surged down Mount Etna in Sicily on Monday. The Italian National Institute of Geophysics and Volcanology released footage showing clouds of ash billowing from the volcano, filmed by a researcher during an expedition. (INGVvulcani via Storyful) | KTLA 5 News