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Bridgeman Island volcano

Stratovolcano 240 m / 787 ft
West Antarctica, South Shetland Islands, -62.05°S / -56.75°W
Current status: (probably) extinct (0 out of 5) | Reports
Bridgeman Island volcano books
Typical eruption style: unspecified
Bridgeman Island volcano eruptions: unknown, no recent eruptions No recent earthquakes
TimeMag. / DepthDistanceLocation

Background:

Bridgeman Island is a small 0.9 x 0.6 km remnant of a much larger volcanic edifice that is now largely submerged. It was constructed along the axis of the Bransfield Rift spreading center between the Shetland and Wedell tectonic plates. Bridgeman Island is located east of King George Island at the NE end of the Shetland Islands, north of the tip of Graham Land Peninsula. The 240-m-high island has a gently sloping top consisting of truncated lava flows. Steep cliffs surrounding the island expose older lavas and bedded pyroclastic rocks. The extensively eroded volcano does not display youthful volcanic features. Several reports of 19th-century fumarolic activity (Catalog of Active Volcanoes of the World) may instead refer to the much younger Penguin Island (González-Ferrán, 1972).
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Smithsonian / GVP volcano information


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