Halema'uma'u Vent Rim Collapse (October 14, 2008)

This video, from October 14, 2008, shows two collapses of the rim of the informally-named Overlook vent and the subsequent emission of ash (see http://hvo.wr.usgs.gov/kilauea/timeline/ for links describing eruptive activity at the summit of Kilauea Volcano). These collapses were part of a sequence of collapses that occurred on October 14 and which culminated in an explosive eruption later in the afternoon that blasted tephra onto the Halema'uma'u crater rim.

The images that comprise this video were acquired by a webcam positioned on the rim of Halema'uma'u Crater about 85 meters (280 feet) above the Overlook vent. The image acquisition rate was 1 frame every 2 seconds, and the resulting video is played at 12 frames per second.