December 7, 2022 — Mauna Loa Eruption Plume

Hawaiian Volcano Observatory scientists have been working to understand what volcanic gases are being emitted by the Northeast Rift Zone eruption of Mauna Loa. Sulfur dioxide (SO2) emission rates of approximately 120,000 tonnes per day (t/d) were measured on December 4, 2022, and remain elevated at this time. The International Volcanic Health Hazard Network has detailed information about vog: https://vog.ivhhn.org/. Forecasts for the dispersion of vog can be found on the Mauna Loa Vog Forecasting Dashboard: https://vog.ivhhn.org/content/mauna-loa-eruption. USGS image by P. Nadeau.