LOS ANGELES - Hawaii's Kilauea volcano, one of the world's most active, erupted again on Sunday, spewing fountains of lava more than 24 metres high.
"The eruption was preceded by a period of strong seismicity and rapid uplift of the summit," the US Geological Survey's Hawaiian Volcano Observatory said.
It is the third time the volcano has erupted this year, after bursting to life in January and June.
A USGS livestream from the rim of the caldera showed fountains of lava erupting from multiple fissures in the crater.
"Lava fountain heights have decreased since the eruption onset, but remain up to about 20-25 meters high," the volcano observatory said in an update.
The observatory raised the volcano's alert status from "watch" to "warning" and the aviation alert was increased to red.
Kilauea is in the Hawai'i Volcanoes National Park on Big Island, well away from population centers, but Hawaii Emergency Management Agency warned that volcanic gases could be a problem for people exposed to them.
"At this time, lava at Kilauea is confined to the summit and does not pose a lava threat to communities. However, eruptions emit volcanic particles and gases which may create breathing problems for people exposed," it posted on X, formerly known as Twitter.