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Penguin Island

Stratovolcano · Antarctica · 180m

The small 1.4 x 1.7 km Penguin Island, seen here from the SW, is located off the SE coast of King George Island in the South Shetland Islands. The most prominent feature is Deacon Peak (center), a largely basaltic scoria cone with a 350-m-wide summit crater. Petrel Crater, a 300-m-wide maar, is located behind Deacon Peak, out of view in this photo. Both Deacon Peak and Petrel Crater were formed within the past few hundred years.
The small 1.4 x 1.7 km Penguin Island, seen here from the SW, is located off the SE coast of King George Island in the South Shetland Islands. The most prominent feature is Deacon Peak (center), a largely basaltic scoria cone with a 350-m-wide summit crater. Petrel Crater, a 300-m-wide maar, is located behind Deacon Peak, out of view in this photo. Both Deacon Peak and Petrel Crater were formed within the past few hundred years. · Photo: Photo by Oscar González-Ferrán (University of Chile). · Wikimedia Commons
Type
Stratovolcano
Country
Antarctica
Region
Antarctic-Scotia Volcanic Regions / South Shetlands Volcanic Arc
Elevation
180m
Coordinates
-62.100, -57.930
Last eruption
1905
Tectonic setting
Intraplate / Continental crust (> 25 km)
Landform
Composite
Major rock type
Basalt / Picro-Basalt
Geological summary

The 1.4 x 1.7 km Penguin Island is located off the SE coast of King George Island in Antarctica's South Shetland Islands, west of the axis of the Bransfield Rift. The most prominent feature is Deacon Peak, a basaltic scoria cone with a 350-m-wide summit crater on the SW side of the island. A small plug of basaltic lava occupies the 75-m-deep crater. Petrel Crater, a 300-m-wide maar, is located near the east coast. The formation of Deacon Peak was dated by lichenometry at about 300 years ago, and the younger Petrel Crater maar was dated at about 100 years (Birkenmajer, 1979). Some reports of fumarolic activity on nearby Bridgeman Island are attributed to the more youthful Penguin Island.

From Wikipedia

Penguin Island is one of the smaller of the South Shetland Islands of Antarctica.

Wikipedia · CC BY-SA · Read full article →

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
1683~1705 · 1 eruptions · max VEI ?1838~1861 · 1 eruptions · max VEI ?1883~1905 · 1 eruptions · max VEI ?16831727179418381883

Detailed timeline

  1. 1905VEI ?Geological estimate
    1905 – Ongoing
    NE flank (Petrel Crater)
  2. 1850VEI ?Observed
    1850 – Ongoing
    Deacon Peak
  3. 1683VEI ?Geological estimate
    1683 – Ongoing
    Deacon Peak

External links

⚠ For reference only. Not for emergency response.