St. Paul Island

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 57.18°N
  • 170.3°W

  • 203 m
    666 ft

  • 314010
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for St. Paul Island.

 Available Weekly Reports

There are no Weekly Reports available for St. Paul Island.

Summary of eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1943 ] [ Unknown ] Uncertain     Several km SW of St. Paul
1280 BCE ± 40 years Unknown Confirmed   Radiocarbon (uncorrected) West side (Fox Hill)

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Barth T F W, 1956. Geology and petrology of the Pribilof Islands, Alaska. U S Geol Surv Bull, 1028-F: 101-160.

Cox A, Hopkins D M, Dalrymple G B, 1966. Geomagnetic polarity epochs: Pribilof Islands, Alaska.. Geol Soc Amer Bull, 77: 883-910.

Feeley T C, Winer G S, 2009. Volcano hazards and potential risks on St. Paul Island, Pribilof Islands, Bering Sea, Alaska. J Volc Geotherm Res, 182: 57-66.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Jaggar T A, 1931d. St. Paul Island in the Pribilof Group. Volcano Lett, 335: 1-4.

Smith R L, Shaw H R, 1975. Igneous-related geothermal systems. U S Geol Surv Circ, 726: 58-83.

Winer G S, Feeley T C, Cosca M A, 2004. Basaltic volcanism in the Bering Sea: geochronology and volcanic evolution of St. Paul Island, Pribilof Islands, Alaska. J Volc Geotherm Res, 134: 277-301.

Wood C A, Kienle J (eds), 1990. Volcanoes of North America. Cambridge, England: Cambridge Univ Press, 354 p.

The largest of the Pribilof Islands, St. Paul contains numerous young cinder cones. St. Paul Island consists of a 110 sq km area of coalescing small basaltic-to-trachybasaltic shield volcanoes capped by cinder cones, similar in style to the Snake Rive Plain volcanism in Idaho. The most widely exposed lava flows originated from E-W-trending vents in the Bogoslof Hill area in the center of the island and a NE-trending row of cinder cones in the Rush Hill area at the west side of the island. Subaerial activity at St. Paul began about 540,000 years ago and produced a basaltic lava platform. Later eruptions produced a series of monogenetic vents and two small shield volcanoes. Bogoslof Hill in the center of the island and Hutchinson Hill, forming isolated Northeast Point, which is connected by a low narrow isthmus to the rest of the island, were formed during the Pleistocene. The youngest vent is the Fox Hill cinder cone on the western side of the island that produced a lava flow about 3200 years ago that traveled into the sea at Southwest Point.