Hawaiian Volcano Update: Waiting for Episode 26 - June 19, 2025

Kīlauea’s ongoing eruption is currently paused, with Episode 26 likely beginning today or tomorrow based on steady summit inflation and ongoing seismic tremors. Overnight, both north and south vents displayed glow and intermittent spatter, signaling magma near the surface.

Since December 23, 2024, Kīlauea’s summit eruption has shown a remarkable rhythm, producing lava fountains approximately once per week. However, it has been over one week since the last fountaining episode. All eruptive activity remains confined within Hawaiʻi Volcanoes National Park, posing no increased lava threat to surrounding communities. The average sulfur dioxide (SO₂) emission rate during inter-episode pauses, such as the current pause, remains around 1,200 tonnes per day. The fountaining phase could be preceded by hours to days of precursory activity. This pattern has been observed consistently across previous episodes, with intermittent lava rise, spattering, and drain-back. 

Vog and tephra remain the most common hazards for island residents, and the usual precautions and preparations apply, especially for those with respiratory sensitivities – more information at https://vog.ivhhn.org/.

Maunaloa continues to inflate quietly its established post-eruption pattern, with only small-magnitude earthquakes and minor adjustments evident on monitoring instruments. As usual, we summarize the monitoring signals, imagery, and reports for both volcanoes available courtesy of the USGS Hawaiian Volcano Observatory, annotating the presentation on screen as we go and discussing live viewer questions. 

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