Hawaiian Volcano Observatory
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Mauna Loa
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Volcanic Hazards
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About HVO
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Links to info about Hawaiʻi's two most active volcanoes:

Kīlauea: Daily eruption updates, maps and photos/videos.

Mauna Loa: Weekly updates and current monitoring data.

Volcano Awareness Month

January 2016 is Hawaiʻi Island's 7th annual "Volcano Awareness Month." With two ongoing eruptions on Kīlauea and recent increase in activity at Mauna Loa, awareness is more essential than ever for us to live in harmony with the active volcanoes that are our island home.

The USGS Hawaiian Volcano Observatory, in cooperation with Hawaiʻi Volcanoes National Park and the University of Hawaiʻi at Hilo will provide a month-long series of programs about the volcanoes on which we live:

USGS photo: Kīlauea lava flow advancing toward Pāhoa in October 2014. "At-a-Glance" Program Schedule

Program descriptions:
January 3, 2016, also marks the anniversary of Kīlauea Volcano's ongoing East Rift Zone eruption, which began in 1983. During the past 33 years, lava flows have buried over 137 km2 (53 mi2) of public and private land, destroying 215 structures and vast tracts of native forest. This destruction reminds us why it's important to be aware of how Hawaiian volcanoes work.

Mauna Loa, the largest active volcano on Earth, has erupted 33 times in the past 172 years, most recently in 1984. In September 2015, the Volcano Alert Level for Mauna Loa was elevated from "Normal" to "Advisory" based on increased seismicity and deformation at the volcano—another reminder of the need for volcano awareness on Hawaiʻi Island.


More Volcano Information from HVO and Beyond

Earthquake seismogramReport a felt earthquake to HVO using this form.
More USGS Volcano Web sites

Volcano WatchCurrent issue of Volcano Watch essay, written weekly by USGS scientists.
National Park ServiceHawaiʻi Volcanoes National Park, home to HVO. Find visitor information and resources here. Graphic: Kids DoorVolcanoes for kids, from the Volcano World website.
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How Hawaiian Volcanoes Work

U.S. Department of the Interior, U.S. Geological Survey, Menlo Park, California, USA
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     phone: 808-967-7328 M-F 8 am - 4:30 pm H.s.t.

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Last modification: 24 November 2015 (pnf)