Sunday summit collapse-explosion measures 5.4

USGS photo A collapse-explosion event occurred at 12:10 p.m. today at the summit of Kilauea volcano. This view of Halema'uma'u crater, facing south, was taken Saturday.

A collapse-explosion event occurred at 12:10 p.m. today at the summit of Kilauea volcano with energy equivalent to a magnitude-5.4 earthquake, according to Hawaiian Volcano Observatory.