Mauna Loa is a shield volcano on the Island of Hawaiʻi. Its 2022 eruption followed 38 years without an eruption and produced lava flows from the Northeast Rift Zone. The Hawaiian Volcano Observatory monitors Mauna Loa and publishes official updates, data, and webcam views. MagmaAlert links selected public resources; it does not assess current hazards or predict eruptions. Check HVO notices and local guidance for current information.