Images from a Web-based camera (Webcam) located 8
km north of Mount St. Helens and a network of remote, telemetered digital cameras were used to observe eruptive activity
at the volcano between October 2004 and February 2006. The
cameras offered the advantages of low cost, low power, flexibility in deployment, and high spatial and temporal resolution. Images obtained from the cameras provided important
insights into several aspects of dome extrusion, including
rockfalls, lava extrusion rates, and explosive activity. Images
from the remote, telemetered digital cameras were assembled
into time-lapse animations of dome extrusion that supported
monitoring, research, and outreach efforts. The wide-ranging
utility of remote camera imagery should motivate additional
work, especially to develop the three-dimensional quantitative
capabilities of terrestrial camera networks.