By combining hydroacoustic, direct-path ranging and bottom-pressure measurements, in situ observations of a rifting event at a segment of the Southeast Indian Ridge are reported, providing insight into seafloor spreading events on yearly timescales.

By combining hydroacoustic, direct-path ranging and bottom-pressure measurements, in situ observations of a rifting event at a segment of the Southeast Indian Ridge are reported,…

Scientists observed a mid-ocean ridge widen in real time, recording several metres of sea-floor motion and huge lava outflows.