Buckets of Ash Track Tephra Flux From Halema'uma'u Crater, Hawai'i
Article first published online: 3 JUN 2011
©2009. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 90, Issue 46, page 427, 17 November 2009
How to Cite
2009), Buckets of Ash Track Tephra Flux From Halema'uma'u Crater, Hawai'i, Eos Trans. AGU, 90(46), 427–427, doi:10.1029/2009EO460003., , and (
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
- tephra flux
The 2008–2009 eruption at Kīlauea Volcano's summit made news because of its eight small discrete explosive eruptions and noxious volcanic smog (vog) created from outgassing sulfur dioxide. Less appreciated is the ongoing, weak, but continuous output of tephra, primarily ash, from the new open vent in Halema'uma'u Crater. This tephra holds clues to processes causing the eruption and forming the new crater-in-a-crater, and its flux is important to hazard evaluations.
The setting of the vent–easily accessible from the Hawaiian Volcano Observatory (HVO)—is unusually favorable for neardaily tracking of tephra mass flux during this small prolonged basaltic eruption. Recognizing this, scientists from HVO are collecting ash and documenting how ejection masses, components, and chemical compositions vary through time.