NASA Satellites Track 7-Sq-Km Thermal Anomalies as New Island Threatens to Rise Near Papua New Guinea
Updated
Updated · ScienceDaily · Jul 12
NASA Satellites Track 7-Sq-Km Thermal Anomalies as New Island Threatens to Rise Near Papua New Guinea
3 articles · Updated · ScienceDaily · Jul 12
Summary
May 12 satellite data found thermal anomalies spanning about 7 square kilometers above a submarine eruption in the Central Bismarck Sea, indicating unusually hot material has risen close to the surface.
NASA, ESA and commercial imagery has also captured steam and ash plumes, discolored water and long pumice rafts since the quake swarm began on May 8, building evidence that new land could emerge.
Scientists still cannot identify the exact vent or its original depth in the poorly mapped basin, though they place the activity along Titan Ridge about 16 kilometers from a 1972 eruption site.
Researchers say the event appears less explosive than Hunga Tonga in 2022 and may stay relatively mild because it sits on a volcanic ridge near a back-arc spreading center rather than a major stratovolcano.
If an island breaks the surface, NASA plans to use NISAR and RADARSAT radar to track its shape, while scientists study whether it persists, collapses or becomes a new natural laboratory.
While scientists celebrate a new island, what immediate dangers does this eruption pose to marine life and global shipping?
Earth's seafloor is less mapped than Mars. What other massive geological events are happening undetected in our oceans?
If a new island is born from this eruption, who legally gets to claim the new land and its resources?
The 2026 Bismarck Sea Submarine Eruption: Scientific Insights, Island Formation, and Regional Impacts
Overview
Since May 2026, a volcanic eruption has been ongoing in the deep waters of the Bismarck Sea, north of Papua New Guinea. This event is especially challenging for scientists to study because the seafloor is geologically complex, with many faults, volcanic features, and extreme depths. High-resolution mapping is very difficult, making it hard to fully understand the eruption. Researchers like Jim Garvin and his team are closely monitoring the situation to track its changes and potential impacts. The eruption highlights how little is known about the deep ocean and the difficulties of observing such dynamic natural events.