April 13, 2026—Kīlauea summit eruption reference map

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 March 31, 2026; as such, the provided statistics are reflective of the first forty-three episodes of the eruption through March 10, 2026. A forty-fourth lava fountaining episode occurred Thursday, April 9, but its lava flows have not yet been fully mapped at this time. 

Eruptive vent and tephra cone statistics through episode 43: 

• Vent elevations: 1,060 meters (3,480 feet)
• Vent level below crater rim: 80 meters (260 feet)
• Vent height to surrounding lava: 25 meters (80 feet)
• Cone's peak elevation: 1,185 meters (3,890 feet)
• Cone's height to crater rim: 45 meters (150 feet) 

Lava statistics through episode 43: 

• Average lava elevation: 999 meters (3,278 feet)
• Average lava thickness: 82 meters (269 feet)
• Maximum lava thickness: 160 meters (525 feet)
• Total lava extent: 423 hectares (1,046 acres)
• Total lava volume: 253.5 million cubic meters (67.0 billion gallons)