The USGS Hawaiian Volcano Observatory keeps its eyes on active volcanoes in many ways. While old fashioned eyes and a notebook are used when field teams are near a volcano, modern volcano ...

Listen to the sounds of a volcano. Volcanoes make noise. Lava and gas moving around can tell scientists what a volcano is doing. Listen.

Sirens sounded as Semeru Volcano in Indonesia sent a fast-moving pyroclastic flow down its southeastern flank, highlighting the danger around one of Java’s most active volcanoes. During July 2026, ...

New research on infrasound from volcanic eruptions shows an unexpected connection with jet engines. Researchers at Scripps Institution of Oceanography at UC San Diego speeded up the recorded sounds ...

The thought of living near an active volcano probably sounds like an unimaginable risk to you—and rightly so. An active volcano is never safe and can turn a forested hillside into a lifeless wasteland ...