Hawaii’s Kīlauea volcano began erupting again on Wednesday for the 30th time in under a year, continuing to be among one of the world’s most active volcanoes. The U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) said “vigorous fountaining” of the Halemaʻumaʻu crater eruption began around 1:20 a.m. HST.

The activity started around 1:20 a.m. with broad fountains 150 to 300 feet high from the crater’s north vent, covering about 20% of the crater floor. A new line of smaller fountains also emerged south of the old south vent area, coinciding with a cluster of small earthquakes.

Episode 30 of the ongoing Kīlauea eruption on the Big Island began at about 1:20 a.m. on Wednesday, producing lava fountains of 150 to 300 feet high from the vent, according to officials with the Hawaiian Volcano Observatory.