Skip to main content
U.S. flag

An official website of the United States government

January 12, 2022

The fourth in a series of recorded talks by HVO staff that will be posted on our website throughout the month of January. These talks are presented as part of the Island of Hawai‘i’s annual Volcano Awareness Month, an effort to increase understanding of Hawaiian volcanoes among residents and visitors. Questions? Email

Volcano Awareness Month 2022 Short Feature

Also available here:

Please also see the recent "Volcano Watch" article on Volcano Awareness Month 2022. 

Kīlauea’s recent explosive history

Video Transcript
Join USGS Hawaiian Volcano Observatory retired geologist Don Swanson on a virtual field visit to an exposure of the Keanakāko‘i Tephra near the summit of Kīlauea as part of Volcano Awareness Month. This exposure shows deposits of explosive eruptions of Kīlauea between 500 and 230 years ago, from just after the modern caldera formed to the lethal explosive eruption of 1790. Volcano Awareness Month is spearheaded by the USGS–Hawaiian Volcano Observatory, in cooperation with Hawai‘i Volcanoes National Park, Hawaii County Civil Defense Agency, and the University of Hawai‘i at Hilo, and provides informative and engaging public programs about the science and hazards of Hawaiian volcanoes. Photo caption: Don Swanson describes the stratigraphy of Keanakāko‘i deposits near Uēkahuna Bluff at Kīlauea summit within Hawai‘i Volcanoes National Park.