A robot deployed to the bottom of Siberia's Lake Baikal last summer captured footage of cracks and deformations caused by previously unknown mud volcanoes — and you can watch the discovery in a video below.
The robot discovered scars left behind by eruptions of mud at depths of 340 to 540 feet (100 to 165 meters) in two locations — Malaya Kosa Bay and Goryachinskaya Bay — along the northwestern shore of the lake. Although scientists already knew Lake Baikal harbored mud volcanoes, the latest find sits uncomfortably close to a fault zone known as the Severobaikalsk, or North Baikal fault, which straddles the lakeshore. Signs of recent eruptions at the bottom of the lake could indicate the fault is active.
