Geologic mapping has been one of the most fundamental mandates of the U.S. Geological Survey (USGS) since its establishment ...

JAKARTA, Nov 9 (Reuters) - Indonesia's Mount Lewotobi Laki-laki erupted at least three times early on Saturday, spewing an ash column 9 km (5.6 miles) high, as authorities planned to widen the ...

The U.S. Geological Survey says it has detected an increase seismic activity around Kamaʻehuakanaloa. The underwater volcano ...

Over the past century, technological advancements have vastly improved volcano monitoring. One key innovation was the ...

The End Triassic Extinction, which occurred about 201.6 million years ago, stamped out three-quarters of all life on Earth, and has long been thought to be linked to the volcanic eruption of the ...

The recent eruption at Nāpau Crater ... Visit the observatory website for past “Volcano Watch” articles, Kīlauea and Maunaloa updates, volcano photos, maps, recent earthquake information ...

volcanic gases and ash from the mountain and the possibility of minor to moderate-sized explosions. Popocatépetl has been active since 1994 and has gone through episodes of increased activity ...