Massive Hydrothermal Vent Field Discovered Off Greece Stuns Scientists
Scientists discovered a surprisingly large hydrothermal vent field near Milos, Greece, revealing Earth's dynamic interior through boiling fluids and vibrant microbial life. The discovery, announced on December 30, 2025, highlights the role of seafloor fault lines in releasing hot, gas-rich fluids, according to MARUM - Center for Marine Environmental Sciences, University of Bremen.
The extensive underwater vent system was found hidden along active fault lines beneath the seafloor near Milos. These geological fractures act as pathways for hot, gas-rich fluids to escape, forming clusters of vents with striking visual diversity. Researchers were surprised by the find, observing boiling fluids and vibrant microbial mats during deep-sea dives.
The discovery, detailed in Scientific Reports, positions Milos as one of the Mediterranean's most important sites for studying underwater geological activity and its potential impact on marine ecosystems. Scientists sampled fluids reaching temperatures of 180 degrees Celsius. The hydrothermal field showcases Earth's dynamic interior.
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