In a recent discovery, satellites from NASA have documented a submarine volcanic eruption in the Bismarck Sea, located north of Papua New Guinea. The satellite captures, which showed an immense column of magma rising from the seabed, underscore the importance of space technology for studying geological activities, especially in hard-to-reach areas.
Detecting underwater eruptions from space
Using advanced sensors, scientists were able to observe changes in the water color, as well as the appearance of an extensive concentration of floating pumice, allowing for almost real-time monitoring of the phenomenon. This is possible thanks to the joint work of the Landsat 9 and Terra satellites, which capture high-definition images of the ocean.
NASA highlighted the formation of a huge pumice raft, a common indicator in this type of eruption. These volcanic rocks, characterized by their low density, can float for long periods, being carried by ocean currents over great distances from the place of origin.
Satellite images captured a large greenish stain in the ocean, resulting from volcanic ash and gases emanating from the seabed. This type of observation is crucial for identifying rapid changes on the ocean surface, according to the scientific communication specialist from NASA’s Earth Observatory.
Norman Kuring, a prominent oceanographer at the Goddard Space Flight Center, noted that pumice rafts not only evidence volcanic activity but also help study ocean currents and the course of the eruption.
The Bismarck Sea is part of the Pacific Ring of Fire, a zone known for its intense tectonic activity. This belt hosts 75% of the world’s active volcanoes and is a key place for studying both underwater volcanoes and earthquakes.
This finding is significant for geological and oceanographic research, given the interest the region arouses due to its tectonic activity. NASA continues to demonstrate how satellite technology is vital for monitoring our planet.
