"Officials said the molten rock from the crater is now flowing down a so-called lava tube beneath earlier, hardened lava, straight into the sea. That has eased fears it could spread wider and cause more destruction.
The German Research Center for Geosciences, which sent a team to La Palma, said the lava flow is 6,300 meters (6,900 yards) long, more than 1,000 meters (1,100 yards) wide at its broadest point, and up to 25 meters (82 feet) thick."
[Phys.org 07 OCT 2021]