Volcano Watch

For more than six months, earthquakes at Mauna Loa have diminished and deformation has slowed, indicating that the volcano is no longer at an elevated...

When volcanic gases are released into the atmosphere, resulting plumes sometimes appear to have a faint color. Is this color indicative of a certain...

Small explosions that produce ashfall from Kīlauea Volcano's summit are not new. However, the mechanism, vigor, plume heights, and extent of ash...

With the current activity at the volcano's lower East Rift Zone and summit, it's an understatement to say that Kīlauea has been making worldwide...

Numerous hazards are associated with active lava flows, and USGS Hawaiian Volcano Observatory scientists have written about many of them in past...

False rumors about the ongoing volcanic activity at the summit and lower East Rift Zone of Kīlauea Volcano are causing unnecessary anxiety and...

Last week's Volcano Watch focused on the East Rift Zone eruption, which continues to impact the lower Puna District on the Island of Hawai‘i. Changes...

The USGS Hawaiian Volcano Observatory was unable to issue "Volcano Watch" by its regular Thursday deadline on May 3 due to unfolding events on Kīlauea...

The past few weeks have been exciting for volcano watchers on the Island of Hawai‘i, especially for visitors to Hawai‘i Volcanoes National Park’s...

In recent years, scientists have made significant improvements in developing sophisticated models of how volcanoes work. The ultimate goal is to...