Photo & Video Chronology — November 25, 2025 — Kīlauea summit eruption episode 37

By Hawaiian Volcano Observatory November 26, 2025

Episode 37 lava fountaining occurred yesterday from 2:30 p.m. to 11:39 p.m., totaling just over 9 hours.

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Episode 37 lava fountaining occurred On November 25, from 2:30 p.m. to 11:39 p.m., totaling just over 9 hours. Fountains were limited to the north vent, which sent lava flows over a large portion of the crater floor. Fountain heights reached 500-600 ft (150-180 meters). The south vent showed only weak spattering and flaming. USGS photo by M. Patrick.

Color photograph of scientist monitoring a volcanic eruption

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USGS Hawaiian Volcano Observatory scientists document lava fountains and lava flows during episode 37 of the ongoing Kīlauea summit eruption in Halemaʻumaʻu crater. From the rim of the crater, scientists can use a laser rangefinding device to approximately measure the lava fountain heights, and distance the lava flows have travelled. USGS photo by M. Patrick.

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The telephoto shows lava flowing east across the floor of Halemaʻumaʻu crater, fed by the lava fountains in the west part of the crater. Preliminary estimates suggest that approximately 6 million cubic meters (7.8 million cubic yards) of lava were erupted during episode 37, based on ground deformation data. USGS photo by M. Patrick.

Color telephotograph of lava streams at night

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Telephoto view of lava flows on the floor of Halemaʻumaʻu crater. These lava flows were erupted during episode 37 of lava fountaining at the summit of Kīlauea, which was active for about 9 hours on November 25. USGS photo by M. Patrick.

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Episode 37 of the Kīlauea summit eruption in Halemaʻumaʻu began November 25 at 2:30 p.m. with lava fountaining from the north vent. A wide fountain developed, eventually reaching heights of 500-600 ft (150-180 meters), sending flows across a broad portion of the crater floor. The south vent showed only weak spattering and persistent flaming through the event. North vent lava fountaining had diminished slightly by 8 p.m., and eventually terminated at 11:39 p.m. No tephra fall was observed on nearby roads. Preliminary estimates suggest that approximately 6 million cubic meters (7.8 million cubic yards) of lava were erupted during episode 37, based on ground deformation data. USGS video by M. Patrick.

Color map showing area covered by lava flows in recent volcanic eruption — This reference map depicts the Kīlauea summit eruption within Halema‘uma‘u crater that began on December 23, 2024. The data for this map were collected during a Hawaiian Volcano Observatory helicopter overflight on November 24, 2025; as such, the provided statistics are reflective of the first thirty-six episodes of the eruption through November 9. A thirty-seventh lava fountaining episode occurred November 25, but its lava flows will be mapped in full during the next overflight, likely sometime next week.Eruption statistics through episode 36:Vent elevations: 3,445 feet (1,050 meters) above sea levelVent level above surrounding lava: 130 feet (40 meters)Vent level below crater rim: 295 feet (90 meters)Average lava elevation: 3,219 feet (981 meters)Average lava thickness: 210 feet (64 meters)Total lava extent: 950 acres (384 hectares)Total lava volume: 49.0 billion gallons (185.5 million cubic meters)