Underwater Volcanoes Create Rivers of Molten Lava on the Seafloor
At mid-ocean ridges, magma erupts through cracks and forms glowing streams of basalt that instantly chill into pillow-shaped rocks. These eruptions build new oceanic crust at rates of several centimeters per year.
💡 Fun detail:
Submersibles have filmed these lava rivers flowing like orange syrup, hidden beneath kilometers of black seawater.
Source: National Oceanic and Atmospheric Administration