Volcano Watch: Gas math — how we know how much sulfur dioxide volcanoes emit

Volcanic gases are an important part of eruptions — they help magma to rise within the earth and erupt, they can tell us how much lava is being erupted, and the volcanic air pollution (vog) they cause can be a hazard. So it is important for the USGS Hawaiian Volcano Observatory (HVO) to measure how much of what kind of gas is being emitted by our volcanoes.

Volcano Watch: Kilauea’s ongoing eruption: a rising lava lake

It has been an exciting week at Kilauea Volcano as the summit eruption that began on the evening of December 20th continues. The eruption remains confined within Halema‘uma‘u crater. Monitoring data show no signs of activity migrating from the summit into the rift zones, nor indications of summit collapse like those in 2018.

Kilauea SO2 emission rates drop

Summit sulfur dioxide emission rates continued to drop over the weekend following the start of Kilauea Volcano’s summit eruption late Dec. 20.

Volcano Watch: A new eruption and a new era at Kilauea Volcano

‘Twas the Sunday before Christmas, the eve of the winter solstice, and festive holiday lights blinked of bright red and green. And then, shortly after 9:30 p.m. on Dec. 20, so did the Hawaiian Volcano Observatory’s (HVO’s) volcano alert level/aviation color codes for Kilauea!

No reprieve from vog in the forecast

A thick layer of vog continues to blanket West Hawaii areas for a third day following the start of an eruption Sunday night at Kilauea Volcano.