Hawaii's Kilauea volcano continues to devastate Big Island, with hydrovolcanic explosions now being observed. Here is all the latest.
On July 16, a tour boat carrying curious tourists ventured too close to the volcano, resulting in 23 injuries when a lava bomb plummeted through its canopy.
The USGS thinks this may have been caused by an underwater explosion, or ‘hydroexplosion’ a result of the heating of seawater by molten lava.
These types of eruptions are not well documented, so it’s hard to tell exactly what is going on beneath the waves.