November 4, 2025, 10:01 AM HST
Screenshot of Kīlauea on Nov. 4, 2025.
Episode 36 of the ongoing Halemaʻumaʻu eruption at Kīlauea with Hawai‘i Volcanoes National Park could happen at any time.
According to a report from the Hawaiian Volcano Observatory this morning, the north and south vents had a strong glow and minor periods of spattering overnight and into the early morning.
Models forecast an eruption window for Nov. 4–8, with Nov. 5-7 most probable.
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The north and south vents have also had frequent lava overflow periods in the last 24 hours that have continued into the morning. A total of 14 overflows at south vent and 10 overflows at the north vent have occurred in the last 24 hours, the report indicated. Many of these overflow events were large enough that lava reached the base of the vents.
Fountaining did not accompany the rise of magma and overflows.
Lava fountaining episodes have occurred approximately once per week since the start of the current eruption on Dec. 23, 2024. The current eruption has been characterized by episodic lava fountaining, not seen in any eruptions since the 1983–86 episodic fountains at the beginning of the Puʻuʻōʻō eruption, according to Hawaiian Volcano Observatory.
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Lava fountains and flows have erupted from two vents within Halemaʻumaʻu crater that we refer to as the north vent and south vent. Each of the previous fountaining episodes lasted from a few hours to over a wee
Episode 35 ended on Oct. 18 after 7 1/2 hours of continuous lava fountaining. Both vents continue to exhibit strong incandescence along with minor spattering and frequent lava overflows overnight. Kīlauea summit inflation continued over the last 24 hours; however, repeated overflows from the north and south vents indicate the start of episode 36 is close.
