A powerful volcanic eruption forced officials to evacuate the summit area of Hawaiʻi Volcanoes National Park on Tuesday after a massive plume of rock, ash, and glass fragments rained down across parts of the park. The event marks the second major eruption of the year at Kīlauea, one of the most active volcanoes in the United States.
Lava Fountains and Falling Tephra Trigger Safety Closures
The eruption began at 9:17 a.m. Tuesday, according to a press release from Hawaiʻi Volcanoes National Park, located on the Island of Hawaiʻi, often called the Big Island. Lava fountains surged as high as 1,300 feet into the air, ejecting molten rock that cooled midair and fell back to the ground as tephra—a mix of volcanic rock fragments, ash, and glass particles.
Park officials said the falling material created hazardous conditions across the summit area of Kīlauea, prompting an immediate evacuation of visitors.
“Although light and airy, tephra chunks can cause abrasions and irritate eyes and breathing,” the park’s statement said. “Tephra fallout covers road markings and causes vehicles to skid and slide.”
Due to the dangerous driving conditions created by the debris, Highway 11—a major route circling the island—was closed between mile markers 24 and 40.
Recent Eruptions Have Already Caused Injuries
The eruption is part of an ongoing activity cycle that began Dec. 24, 2024, and has already produced multiple hazardous episodes.
In January, a similar eruption showered the park and surrounding communities with tephra. During that event, falling volcanic debris struck several visitors, with some reporting minor injuries, including cuts that drew blood.
That January incident also marked the first time the National Park Service closed the Kīlauea summit since the eruption cycle began.
Large volumes of volcanic material spread far beyond the park boundaries, reaching communities including Hilo and Puna. The fallout contaminated rainwater catchment systems—commonly used by Big Island residents—and required extensive cleanup.
Flights at Hilo International Airport were canceled that evening due to ash in the air, and residents spent weeks clearing volcanic debris from rooftops, gutters, and roadways.
Wind Conditions Influence Where Volcanic Debris Falls
Jessica Ferracane, the park’s public affairs officer, said wind conditions play a key role in determining where tephra lands.
Problems occur when weak winds coincide with extremely high lava fountains, allowing debris to fall almost straight down over the park and nearby populated areas.
During other eruptions, stronger trade winds typically carry ash and volcanic gases toward the Kaʻū Desert and communities southwest of the park.
Summit Area Closed as Rangers Evacuate Visitors
As of 2 p.m. Tuesday, tephra continued to fall across the summit region. Park rangers were actively evacuating visitors from the area, according to park officials.
However, guests with reservations at Kilauea Military Camp and the historic Volcano House hotel were still permitted to enter the park and remain indoors under shelter-in-place guidance.
“All trails and outdoor overlooks in the vicinity of the summit are closed,” the park service said in its statement.
Officials said the park will reopen only after the eruption subsides and crews can safely clear roads, trails, and facilities of volcanic debris.
Ongoing Volcanic Activity on the Big Island
Kīlauea is among the most closely monitored volcanoes in the world and has experienced frequent eruptions over the past several decades. Scientists with the U.S. Geological Survey’s Hawaiian Volcano Observatory continue to track seismic activity, gas emissions, and lava flows to assess potential hazards.
While volcanic eruptions are a major natural attraction for visitors to the Big Island, officials warn that sudden changes in conditions—such as falling tephra and volcanic gases—can pose serious safety risks.
Conclusion
Tuesday’s eruption underscores both the power and unpredictability of Kīlauea. As park staff work to clear debris and restore access, officials continue urging visitors and nearby residents to remain cautious while volcanic activity persists across Hawaiʻi Volcanoes National Park.

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