![]() ![]() The summit of the dominantly phonolitic Mount Erebus has been modified by one or two generations of caldera formation.Ī summit plateau at about 3200-m altitude marks the rim of the youngest caldera, which formed during the late-Pleistocene and within which the modern cone was constructed. The 3794-m-high Erebus is the largest of three major volcanoes forming the crudely triangular Ross Island. Mount Erebus, the world's southernmost historically active volcano, overlooks the McMurdo research station on Ross Island. This camera is currently sending a new image every five minutes and will keep updating as long as solar and wind power allows. MEVO is developing solutions to bring year-round imagery, and new installations will be reported on their facebook page. Imagery from Erebus is available primarily during December and January, during the height of the Austral Summer and Erebus field season. ![]() Erebus (created by Caldwell (1989), modified by Harpel (2000). Simplified geologic map of the summit caldera of Mt. Erebus edifice will be mapped in the near future, according to MEVO. It is unlikely that other portions of the Mt. Later, Harpel (2000) modified the stratigraphic relationships of the mapped flows using the 40Ar/39Ar dating technique.īelow is the simplied geologic map from Caldwell (1989) and Harpel (2000). Caldwell (1989) identified, mapped and geochemically analyzed over a dozen individual lava flows within the summit caldera. Erebus, however, does have significantly more rock outcrop than lower elevations. Erebus, and most other Antarctic volcanoes, difficult. Lack of outcrop exposure due to snow and ice cover make geologic mapping on Mt. The Mount Erebus volcanic edifice has not been geologically mapped to the degree many other volcanoes of the world have been, MEVO explains. In addition, infrequent small ash eruptions took place at a vent adjacent to the lava lake." "MEVO reported that as of November 23, 2001, frequent Strombolian eruptions (~1-10 per day) occurred from a persistent ~15-m-diameter summit lava lake at Erebus. Previous addition was during the week of November 21 – 27, 2001: The eruption sizes were based on comparisons of seismic data for known Erebus eruptions." Erebus activity log, several "small- to medium-sized" eruptions occurred during 12-18 October, with a "very large" eruption occurring on 14 October. The last time this volcano appeared in GVP's weekly volcanic reports was during the week of October 12 – 18, 2005: ![]()
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