A hydrothermal vent in Lau Basin. (IMAGE)

University of Tokyo

A hydrothermal vent in Lau Basin.

Caption

This vent was photographed at a depth of 1,920 meters, but the deepest known vents are found at almost 5,000 meters. The hydrothermal fluid was 288 degrees Celsius, but some deep vents can exhaust liquid around 400 degrees Celsius. ©2026 JAMSTEC 

Credit

©2026 JAMSTEC

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