Measurements at the Mauna Loa Observatory stopped after the 2022 eruption of the Mauna Loa volcano, when lava flow crossed the access road and took out power lines to the facility. The observatory remains inaccessible by vehicle and without power from the local utility company.

Observatory staff has established limited solar power in four observatory buildings and restored approximately 33 percent of the measurements onsite, including the Global Monitoring Laboratory and Scripps critical CO2 records and other atmospheric measurements.

Media can contact: Theo Stein (303) 819-7409 ( or Karin Vergoth 303-632-6413‬ (

The lava from the Mauna Loa eruption in November, 2022 is still cooling and NOAA is working with State and Federal partners to restore road and power to the site as soon as possible.

Below are two short movies showing the lava flow crossing the road to the Observatory (videos taken by MLO staff).