Maunaloa volcano, Big Island, Hawai'i: news & activity updates

Mauna Loa volcano (Hawaiian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 15 March-21 March 2023 (Continuing Activity)

HVO reported that Mauna Loa had been quiet since the eruption ended on 13 December 2022 and the number of earthquakes beneath the summit had returned to background levels. Inflation continued as magma replenished the summit reservoir. On 16 March HVO lowered the Volcano Alert Level to Normal (the lowest level on a four-level scale) and the Aviation Color Code to Green (the lowest level on a four-color scale). Read all

Maunaloa volcano update: decreased alert status to Green following calm period

The volcano has remained at calm stage since the effusive eruption ended on 13 December, 2022. Read all

Mauna Loa volcano (Hawaiian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 15 March-21 March 2023 (Continuing Activity)

HVO reported that Mauna Loa had been quiet since the eruption ended on 13 December 2022 and the number of earthquakes beneath the summit had returned to background levels. Inflation continued as magma replenished the summit reservoir. On 16 March HVO lowered the Volcano Alert Level to Normal (the lowest level on a four-level scale) and the Aviation Color Code to Green (the lowest level on a four-color scale). Read all