USGS

Monitoring Active Volcanoes

By Robert I. Tilling

Introduction
Monitoring Techniques
Some Case Studies
Conclusions

Lava fountains, approximately 100 meters high, play at the vent during the September 1977 eruption of Kilauea Volcano. COVER PHOTOGRAPH: Scientist measures 350-meter-high fountain during March 1983 eruption at Kilauea Volcano, Hawaii. Geologist records data at Redoubt Volcano, Alaska
Lava fountains, approximately 100 meters high, play at the vent during the September 1977 eruption of Kilauea Volcano. New lava flows and downed trees in foreground. (Photo by Boone Morrison.) Geologist records data at Redoubt Volcano, Alaska, while operating a Correlation Spectrometer (COSPEC), to measure the amount of sulfur dioxide in volcanic plumes.


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Last updated 4.30.99