The USGS said last week that both Mauna Loa and Kilauea had stopped erupting. Kilauea’s lava lake is stagnant and crusted over. Before this event, Mauna Loa had not erupted since 1984 ...

This park preserves the natural setting of two active volcanoes: Kīlauea, one of the most active in the world, and Mauna Loa, one of the largest in the world. Visitors can hike across the floor of a ...

The level of carbon dioxide in the atmosphere measured by a weather station at the Mauna Loa Observatory in Hawaii increased by 3.58 parts per million in 2024 – the biggest jump since records ...