Kīlauea Volcano Expected to Begin Episode 33 Lava Fountaining Soon

Scientists at the USGS Hawaiian Volcano Observatory report that Episode 33 of lava fountaining at Kīlauea volcano is expected to begin imminently, likely between September 17 and 20, with some signs pointing to an earlier start. The eruption is preceded by strong gas pistoning cycles, dome fountains up to 10-20 feet, and small episodic lava flows from the north vent, accompanied by vigorous gas bursts that send spatter up to 30 feet high. Summit inflation continues, with the Uēkahuna tiltmeter recording significant inflationary tilt since the previous episode ended, although this inflation has leveled off recently. Elevated sulfur dioxide emissions and volcanic glass strands known as Pele's hair are present in the summit area and surrounding communities, posing health risks such as respiratory and eye irritation, especially to vulnerable populations. Glow and intermittent overflows are visible at both the north and south vents, and volcanic smog (vog) continues to affect downwind areas. Scientists emphasize ongoing monitoring and alert issuance to keep the public informed and safe during this evolving volcanic activity.