Mt. Kilauea has been in a state of eruption since 1983. Most of the time, the volcano is relatively calm, altering the island landscape little. But every once in a while, dramatic things happen. This past week was one of those times, when about 44 acres of the volcano's flanks collapsed into the ocean this past week, causing a jet of lava to spray out of the newly exposed cliffside.
A collapse warning was issued back in June because the shelf had become very large. The collapse took about 4.5 hours, and was preceded by rumbling. The force of the lava hitting the ocean sprayed solidified lava fragments the size of a human head 1/3 of a mile inland. This photo resembling a waterfall of lava was captured just after the lava spray began.
"The cliff just caved away like a glacier," said park spokesman Jim Gale. "It just sheared off that old wall. There's this gigantic steam plume and you see the red just falling down—an incredible fire hose display."
The article isn't especially clear on whether these "falls" still exist, but given the nature of lava, I suspect the display is somewhat less spectacular now. You can already see a buildup of hardened lava underneath it, almost like a fast-forming stalagmite. Regardless, it's an awesome picture. The USGS has some larger, higher resolution photos from different angles. They're really quite spectacular.