A PROCESS OF MOUNT EREBUS ERUPTION

• Main Authors: カミヌマ カツタダ, ミウラ サトシ /, Katsutada KAMINUMA, Satoshi MIURA, Raymond R. DIBBLE
• Format: Report
• Language: English
• Published: National Institute of Polar Research 1988
• Subjects: Scott Base; Lava Lake; Mount Erebus; Antarc*; Antarctica
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2556; http://id.nii.ac.jp/1291/00002556/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2556&item_no=1&attribute_id=18&file_no=1

A program to continuously monitor the seismic activity of Mount Erebus (77°30'S, 167°09'E, 3794m) in Antarctica and to identify the mechanism of its eruption was begun in December 1980. A video camera for monitoring explosions from the lava lake in the summit crater was installed at the crater rim of Mount Erebus in December 1986. The video signals were transmitted to Scott Base by radio-telemetry recording with the same timecode as the clock of the seismic network. A strict comparison of the origin times of the explosions and the associated earthquakes was made using both seismic data and video recording. It becomes clear in all of the explosions from the lava lake that the earthquakes occurred before the explosions; in other words, the explosion occurred as a result of the earthquake.