Roughly 50 kilometers separate two of Central America’s most dangerous volcanoes, and both are erupting. At Santa Maria, the Santiaguito dome complex has been shedding superheated rock in pyroclastic ...

YAMAGUCHI—An eruption of Mount Aso in Kumamoto Prefecture 90,000 years ago created a pyroclastic flow that traveled 170 kilometers north to the Sabagawa river here, the longest such distance recorded ...

Pyroclastic density currents (PDCs) are among the deadliest manifestations of volcanic eruptions, commonly associated with volcanoes characterized by intermediate to felsic magma compositions and ...

A large pyroclastic flow races down Mayon Volcano, sending ash sweeping across the slopes. The fast-moving surge shows why ...

Geologists have determined why — unlike in the neighbouring town of Pompeii — the inhabitants of the ancient Roman town of Herculaneum were not well-preserved by the eruption of the volcano Vesuvius ...

TEMPO.CO, Jakarta - The Geological Agency has set the volcanic activity status of Mount Semeru in Lumajang, East Java, to level IV or Warning since Wednesday afternoon, November 19, 2025, at 5:00 PM ...

TEMPO.CO, Jakarta - A pyroclastic flow descended from the summit of Mount Semeru in Lumajang, East Java, on Wednesday afternoon, November 19, 2025, ahead of a later eruption. As of publication, the ...

People look at a pyroclastic flow during the eruption of Mount Semeru in Lumajang, East Java, on November 19, 2025. - AFP LUMAJANG, Indonesia: Mount Semeru, located on the border of Lumajang and ...

A pyroclastic flow (also known as a pyroclastic density current or a pyroclastic cloud) is a fast-moving current of hot gas and volcanic matter (collectively known as tephra) that flows along the ...