Current Kīlauea Eruption Ends

The most recent Kīlauea eruption that began on September 10 has ended.

On September 16, lava supply to the vents on the down dropped block in Kīlauea ‘s summit caldera ceased. Based upon visual and geophysical observations. Sulfur dioxide (SO2) emissions have decreased to near pre-eruption background levels.

Accordingly, the USGS Hawaiian Volcano Observatory (HVO) lowered the Volcano Alert Level for ground-based hazards from WATCH to ADVISORY and the Aviation Color Code from ORANGE to YELLOW.

More eruption information on the September 2023 Kīlauea summit eruption is available at:

There remains the potential for eruptive activity to resume in the near future at or near the summit of Kīlauea with little or no warning.

HVO continues to closely monitor Kīlauea for signs of renewed activity. Should volcanic activity change significantly, a new Volcanic Activity Notice will be issued.

For more information about the meaning of volcano alert levels and aviation color codes, see


PHoto credit: HVO

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