• Halema`uma`u Just Before Dawn

    Hawai'i Volcanoes

    National Park Hawai'i

After Dark in the Park Video Archives - Jan 28 2014

Jeff Sutton and Tamar Elias

USGS Hawaiian Volcano Observatory geochemists, Jeff Sutton and Tamar Elias

As magma rises from the Earth's mantle to the surface, the expansion of volcanic gases drives the spectacular lava fountains and flows erupted by Hawaiian volcanoes. While Kīlauea still produces picturesque lava flows from its East Rift Zone, and its summit crater hosts a dynamic lava pond, it also releases huge amounts of volcanic gases which have negatively impacted downwind communities, agriculture, and infrastructure for years. Jeff Sutton and Tamar Elias, USGS Hawaiian Volcano Observatory geochemists, will offer an update about these gases, especially those related to the 2008‐2013 activity at Halema'uma'u Crater, and will talk about volcanic pollution (vog)—how it forms and what we've learned about its effects on our island environment. An optional "gas- tasting" party will follow the talk.

Did You Know?

Ripe `ohelo berries ready to be eaten by nene.

`Ohelo (Vaccinium reticulatum) is a relative of blueberries and a favorite food of nene, the Hawaiian Goose. Its berries range from dark red to pale yellow when ripe and are sacred to Pele, the volcano deity.