News

New crater at Pu‘u ‘Ō‘ō

William Ellis led a team of missionaries on a tour of the Island of Hawai‘i starting on July 18, 1823, from the village of Kailua. Their trip took...

This year, two days before America’s Independence Day fireworks celebrations began, a remarkably different “rocket’s red glare” was seen at Vandenberg...

A new lava shield is being built on Pu‘u ‘Ō‘ō

For the past year, the Kahauale‘a 2 lava flow was erupting from a vent high on the northeast crater rim of Pu‘u ‘Ō‘ō, on Kīlauea's East Rift Zone...

CalVO geologist Mae Marcaida examines thin layers of volcanic ash sandwiched between thick beds of sediment deposited by ancestral Mono Lake in...

June 27 breakout building a lava shield near Pu‘u ‘Ō‘ō; Kahauale‘a 2 flow is dead

New breakout on the northeast flank of Pu‘u ‘Ō‘ō

A swarm of small earthquakes (magnitudes less than 2) occurred at a depth of 6-7 km (about 4 miles) beneath Highway 203 in Mammoth Lakes, California...

A few weeks ago, a Volcano Watch article recounted the advance of Mauna Loa lavas on the town of Hilo in 1855.