TEMPO.CO, Jakarta - The head of Indonesia’s Geological Agency, Muhammad Wafid, has warned that deposits from Mount Semeru’s recent pyroclastic flows could trigger secondary disasters if not properly ...

Avalanches of ash, gas and rock that cascade downhill during volcanic eruptions may be even more dangerous than scientists had realized. Pulses of high pressure form within these slides, known as ...

Volcanologist Professor Chris Jackson discovers evidence of the deadly pyroclastic flow. Volcanologist Professor Chris Jackson reveals the power of the deadly pyroclastic flow that had swept through ...

BAKERSFIELD — The Kern River cascades from the Sierra Nevada in a steep-sided canyon, coursing through granite boulders, and flows to the northeast side of Bakersfield. There, beside cottonwoods and ...

Merced River levels leapt by roughly 4 feet over the weekend at the Happy Isles Bridge gauge in Yosemite Valley, California, after an atmospheric river brought torrential rain to the area. It was the ...