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Volcano, Storm, and News Updates for the Big Island of Hawaii.

Tracking magma changes through time: 2022 Mauna Loa vs 2018 Kīlauea

3:44 AM · Jan 21, 2023

Volcano Awareness Month 2023 - After 38 years of relative quiet, Mauna Loa erupted on November 27, 2022. The eruption began in Moku‘āweoweo, the summit caldera, and within a day had migrated to the Northest Rift Zone, where large lava flows began moving down the slope of the volcano to the north. USGS Hawaiian Volcano observatory geologists collected samples of the lava and brought them to the rapid response lab at the University of Hawai‘i at Hilo (UHH), where changes in the chemistry and crystals were tracked as the eruption progressed. Join UHH geology professor Cheryl Gansecki as she describes what we learned about the magma feeding this eruption and why was it so different from what we saw from Kīlauea in 2018. This presentation is part of the USGS Hawaiian Volcano Observatory (HVO) Volcano Awareness Month 2023 schedule of programs. HVO, in cooperation with Hawai‘i Volcanoes National Park and other partners, promotes the importance of understanding and respecting the volcanoes on which we live through community talks and guided walks.