a glow in the Halemaʻumaʻu crater in Kilauea’s summit caldera. Subsequent imagery and video showed fissures at the base of the crater, lava lakes flooding the crater floor and lava popping in the air.and a “red” aviation alert due to potential hazards to the ground and air, such as ash emissions. High levels of volcanic gas, such as sulfur dioxide, are the primary concern because they can react in the atmosphere to create volcanic smog harmful to people and livestock downwind.
Kilauea is one of the world’s most active volcanoes and has erupted dozens of times over the past seven decades. In 2018, created slow-moving lava flows that destroyed 700 homes. Over the last 1,000 years, the volcano has covered almost 90 percent of its surface with lava flows.