USGS Hawaiian Volcano Observatory geologists visited the western rim of Halemaʻumaʻu crater for a closer look at the active ...

"Explosive activity began when the magma came into contact with groundwater where a lava flows into a fissure ... (steam), causing steam explosions and tephra fall (ash). There is considerable ...

Lava erupted from the summit of Kilauea volcano in Hawaii. Dramatic footage shows geologists from the United States Geological Survey (USGS) Hawaiian Volcano Observatory collecting tephra that ...

The United States’ most destructive volcanic eruption since 1980 shows no signs of abating as it moves into day 40. Spreading lava flows from several fissures are being continually mapped by ...

This is the most vigorous and highest fountaining episode yet, in my opinion!” These sustained lava fountaining episodes have produced something called tephra or fragmental material, as well as Pele’s ...

Kilauea’s lava fountains reaching 500 feet high resumed Sunday afternoon, less than a week after its latest episode paused Tuesday night.

These impressively high lava fountains have produced tephra (fragments of lava) and Pele’s hair (fibers of volcanic glass). The distribution of tephra is controlled by prevailing wind patterns ...

Lava began to overflow the south vent about ... known as Pele’s hair, and tephra.

Additionally, Pele’s hair (thin strands of volcanic glass) and tephra (volcanic rock fragments) ejected from the lava fountains are also carried downwind. During trade wind conditions ...