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Photo and Video Chronology - Kīlauea - October 30, 2018

By Kīlauea October 30, 2018

Kīlauea Volcano's summit

 

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This August 11, 2018, aerial image Kīlauea Volcano's south caldera shows how the summit was changed by the collapse events that occurred between the end of May and August 2. The bright white line circles the outline of Halema‘uma‘u as it was before the onset of the 2018 collapses. Closer views of the fuming spots within the collapsed area are shown in the two photos posted below. Note in the lower third of this image the section of Hawai‘i Volcanoes National Park's Crater Rim Drive (light gray line) that dropped into the crater during the collapse events.
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Kīlauea Volcano's summit, as viewed from the southwest, shows the collapsed area of Halema‘uma‘u and the adjacent caldera floor. A section of Crater Rim Drive preserved on a down-dropped block is visible at the far right. Volcanic gases rising from magma stored beneath the summit continue to escape to the surface, as they have for as long as Kīlauea has existed, resulting in deposits of sulfur on the crater walls.
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The emission of volcanic gases, including sulfur dioxide and hydrogen sulfide, is not unusual at the summit of Kīlauea. However, sulfur dioxide gas emission rates are now lower than they have been since before 1983, with about 50 tonnes/day measured at the summit of the volcano on the day of this photo (October 24). Even with low emissions, enough gas reaches the surface to produce yellow deposits of native sulfur on the crater walls, as seen here.

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