Link to USGS home page.
USGS HOME
Contact USGS

  • Assess
  • Prepare
  • Forecast
  • |
  • Activity
  • Products
  • Observatories
  • About

Time-lapse sequence of Halema‘uma‘u degassing plume

This Quicktime movie is a time-lapse sequence from a camera in the HVO observation tower, and shows one week of activity at Kīlauea's summit vent in Halema‘uma‘u Crater. The sequence starts on February 3 at 12:01 am and ends on February 9 at 11:59 pm. The continuously active lava lake produces a degassing plume that is normally carried by the tradewinds to the southwest (right in this view), but tradewinds are unstable in winter months and wind directions fluctuate. The path of the plume determines which areas will experience the unpleasant effects of vog. In the lower right is Jaggar Museum, and park visitors can be seen enjoying the view from Jaggar Overlook. Note that the camera used here is sensitive to both visible and near-infrared wavelengths, and some of the colors (particularly of vegetation) will be slightly different than what we see with the naked eye.