About Penguin Island
Penguin Island is a stratovolcano rising to 180 meters (591 feet) in Antarctica's Antarctic-Scotia Volcanic Regions. It last erupted in 1905 CE, and volcanologists consider it an active volcanic system. The volcano has produced 3 recorded eruptions.
Geography & Climate
Penguin Island is located in Antarctica, within the South Shetlands Volcanic Arc of the broader Antarctic-Scotia Volcanic Regions. Situated at 62.10° S, 57.93° W in the Southern Hemisphere, the volcano lies within a subarctic climate zone. At just 180 meters above sea level, Penguin Island is a relatively low-elevation volcanic feature. Despite its modest height, it remains an active geological formation with the same underlying magmatic processes as its taller counterparts. The volcanic landform is characterized as a composite, which describes the physical shape and structure of the volcanic edifice as observed from the surface.
Geological Context
Penguin Island is an intraplate volcano, meaning it formed away from any plate boundary. These volcanoes are often powered by hotspots — plumes of abnormally hot mantle material rising from deep within the Earth. Hotspot volcanoes like Penguin Island tend to produce effusive eruptions with lava flows that can be relatively predictable, giving nearby communities in Antarctica more time to prepare. However, they can also produce explosive phases, particularly when magma interacts with groundwater. The dominant rock type is basalt / picro-basalt, a dark, fine-grained volcanic rock that forms from rapidly cooling, low-viscosity lava. Basaltic eruptions tend to be less explosive and produce fluid lava flows that can travel long distances. While less immediately dangerous than explosive eruptions, basaltic lava flows can destroy structures and infrastructure in their path, and volcanic gases released during these eruptions can affect air quality over a wide area.
Eruption History Summary
Penguin Island has 3 recorded eruptions in the geological database, spanning from 1683 CE to 1905 CE. These eruptions span roughly 222 years of volcanic history. The most recent eruption in 1905 CE places this volcano within the modern era of volcanological observation.
GVP Reference 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.
— Smithsonian Institution, Global Volcanism Program
3 Recorded Eruptions
| Year | VEI | Type | Area |
|---|---|---|---|
| 1905 | — | Confirmed Eruption | NE flank (Petrel Crater) |
| 1850 | — | Confirmed Eruption | Deacon Peak |
| 1683 | — | Confirmed Eruption | Deacon Peak |
Real-Time Data
USGS Alert Level
Thermal Anomalies
Frequently Asked Questions About Penguin Island
Is Penguin Island an active volcano?+
Yes, Penguin Island is considered an active volcano. Its most recent eruption was in 1905 CE. The volcano is monitored by geological agencies, and its activity status is based on observed eruptions within recorded history.
When did Penguin Island last erupt?+
The most recent recorded eruption of Penguin Island occurred in 1905 CE. The eruption was classified as a "Confirmed Eruption." Penguin Island has 3 recorded eruptions in total.
How high is Penguin Island?+
Penguin Island has a summit elevation of 180 meters (591 feet) above sea level. At 180 meters, it is a relatively low-elevation volcano.
What type of volcano is Penguin Island?+
Penguin Island is classified as a Stratovolcano. Stratovolcanoes (also called composite volcanoes) are steep, conical volcanoes built up by many layers of hardened lava, tephra, and volcanic ash. They are among the most common and dangerous types, known for explosive eruptions.
Where is Penguin Island located?+
Penguin Island is located in Antarctica, in the Antarctic-Scotia Volcanic Regions. More specifically, it lies within the South Shetlands Volcanic Arc. Its exact coordinates are -62.100° latitude, -57.930° longitude.
Is it safe to visit Penguin Island?+
Visiting Penguin Island requires checking current volcanic activity and alert levels. As an active volcano with eruptions as recent as 1905 CE, conditions can change rapidly. Always consult local geological authorities and follow official warnings before visiting. Many active volcanoes have designated safe viewing areas and guided tour options.