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News related to Haleakalā.

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Volcano Watch — It is Earth Day, My Earthlings

Earth Day (https://www.earthday.org/) was first established on April 22, 1970, to raise awareness of some of the harmful effects industrialization was...

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Volcano Watch — Something new from something old: A new Geologic Map of the State of Hawaiʻi

The original purpose of geologic mapping in Hawaiʻi was to understand the distribution of groundwater and soils to support agriculture. But as...

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USGS HVO Information Statement—Magnitude-4.7 earthquake offshore of the island of Maui

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.7 earthquake located offshore of the island of Maui on Tuesday...

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Volcano Watch — Looking for maps? GIS data? Try the HVO publications page!

Many messages to AskHVO (askHVO@usgs.gov) request resources relating to geologic maps and geographic information systems (GIS) data. "Is there a map...

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How to stay informed about Hawaiian volcanoes

Information about how to stay informed about Hawaiian volcanoes.

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Volcano Awareness Month

January 2019 is Hawaiʻi Island's 10th annual Volcano Awareness Month.

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Volcano Watch - Why do some Hawaii earthquakes occur so far offshore?

Earthquakes in Hawaii are intimately related to the volcanoes. In addition to helping scientists track moving magma, sometimes they happen simply...

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Update on January 2019 Volcano Awareness Month Presentations

Due to the lapse in appropriations, USGS Hawaiian Volcano Observatory scientists are unable to present public lectures as planned.

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Update on January 2019 Volcano Awareness Month Presentations

Due to the lapse in appropriations, USGS Hawaiian Volcano Observatory scientists are unable to present lectures as planned. 

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We continue to monitor and report on volcanic activity during any lapse in appropriations.

During the current federal government shutdown, the Volcano Hazard Program and all five U.S. Volcano Observatories will continue to issue updates...

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Volcanic threat assessment helps prioritize risk reduction efforts at U.S. volcanoes

The U.S. Geological Survey assesses active and potentially active volcanoes in the U.S., focusing on history, hazards and the exposure of people...

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Volcano Watch — Threat Rankings of our Nation’s geologically young volcanoes

What exactly do volcano threat rankings mean?

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