U.S. Geological Survey - Hawaiian Volcano Observatory

Volcano Watch

Volcano Watch is a weekly newsletter written by the scientists at the US Geological Survey's Hawaiian Volcano Observatory. It is published in the Hawaii Tribune-Herald's Sunday newspaper and the West Hawai'i Today's Monday newspaper, and posted here the following Monday or Tuesday. While primarily addressed to the residents of the Big Island of Hawai`i, some articles may have a broader scope. Article topics may range from volcanic features on the Big Island, volcanic hazards, informational topics of Long Valley, Montserrat, or Alaska, to topics about the Hawaiian Volcano Observatory.

Latest Issue:

April 29, 2009: USGS Radar Helps Monitor Redoubt Volcano, Alaska

Previous Issue:

April 23, 2009: How do recent earthquakes fit into the Kīlauea puzzle?

At Kīlauea's summit, the vent within Halema`uma`u Crater continues to emit elevated amounts of sulfur dioxide gas, resulting in high concentrations of sulfur dioxide downwind. Variable glow and vent noises over the past week suggest that lava is still present at shallow levels below the floor of Halema`uma`u crater.

Visit our Web site (http://hvo.wr.usgs.gov) for detailed Kīlauea and Mauna Loa activity updates, recent volcano photos, recent earthquakes, and more; call (808) 967-8862 for a Kīlauea summary; email questions to askHVO@usgs.gov.

For maps, photographs, and more current information see Kilauea's eruption update page. Visit The Hawaii Center for Volcanology for captivating eruptive photos and a history of the eruption.

The Volcano Watch Archive

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USGS, HVO would like to thank Gerard Fryer at SOEST for doing a great job posting, archiving, and maintaining our Volcano Watch articles on their website from December 30, 1994 through March 6, 1998.