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September 8, 2022 — Mauna Loa Sulphur Cone MultiGas Station Maintenance

Detailed Description

A photograph showing the inside of the Hawaiian Volcano Observatory (HVO) gas monitoring site at Sulphur Cone, high on the flanks of the Southwest Rift Zone of Mauna Loa. This MultiGas station is one of several that HVO has deployed on the Island of Hawai‘i. The stations measure volcanic gases (sulfur dioxide, hydrogen sulfide, carbon dioxide and water vapor), fumarole temperature, and meteorological parameters. The data are telemetered back to HVO, where scientists can view it remotely. USGS image by T. Elias.


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