The Indonesian island of Java’s tallest volcano, Semeru, sent an ash cloud nearly a mile into the air this week—the latest uptick in unrest from a mountain that belches ash and volcanic gases almost ...
Pyroclastic density currents (PDCs) represent some of the most formidable and complex volcanic phenomena, characterised by a turbulent mixture of solid particles and gases that surge down slopes at ...
SEATTLE — Editor's note: The above video on the USGS adding more lahar detection sites at Mount Rainier National Park originally aired June 8, 2021. SEATTLE - Western Washington is virtually ...
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