For many Hawaii residents, interactions with Kilauea Volcano’s eruptions is through vog — a hazy mixture of sulfur dioxide gas and sulfate particles. However, sulfur on Kilauea is not limited to vog components.
Volcano Watch: How does the current activity at Kilauea caldera stack up against other volcanoes worldwide?
We are currently witnessing extraordinary events at the summit of Kilauea Volcano.
At the summit of Kilauea Volcano, Halemaʻumaʻu has changed dramatically since early May.
When volcanic gases are released into the atmosphere, resulting plumes sometimes appear to have a faint color. Is this color indicative of a certain gas present? Answering this question requires describing what makes a plume visible in the first place.
Small explosions that produce ashfall from Kilauea Volcano’s summit are not new. However, the mechanism, vigor, plume heights and extent of ash fallout from the current explosive activity within Halema‘uma‘u are.
With the current activity at Kilauea Volcano’s lower East Rift Zone and summit, it’s an understatement to say the volcano has been making worldwide headlines the past month.
Numerous hazards are associated with active lava flows, and USGS Hawaiian Volcano Observatory scientists have written about many of them in past Volcano Watch articles. However, it’s been awhile since one particular hazard —so-called “methane explosions” — has been addressed.
False rumors about the ongoing volcanic activity at the summit and lower East Rift Zone of Kilauea Volcano are causing unnecessary anxiety and confusion. We encourage everyone to check the source of any information you read or hear to be sure that it’s factual, accurate and timely.
Last week’s Volcano Watch focused on the East Rift Zone eruption, which continues to impact the lower Puna District. Changes in the eruptionare occurring daily, if not hourly, so by the time you read this article, the situation likely will have changed.
Three deposits from explosive eruptions at the summit of Mauna Loa are located west, northwest and east of Moku‘aweoweo, the volcano’s summit caldera. In map view, these deposits are fan-shaped. Along the ‘Ainapo Trail, 2.8 to 3.5 km (1.7 to 2.2 mi) southeast of the caldera, several kipuka expose a fourth distinct explosive deposit.