Curtis Island

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 30.542°S
  • 178.561°W

  • 137 m
    449 ft

  • 242010
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Curtis Island.

 Available Weekly Reports

There are no Weekly Reports available for Curtis Island.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 2009 Jan 18 ] [ 2009 Jan 19 ] Uncertain 0   5-6 km NNE of Curtis Island
[ 1936 Jun 18 ] [ 1936 Dec ] Uncertain    
[ 1899 ] [ Unknown ] Discredited    

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.

Doyle A C, Singleton R J, Yaldwyn J C, 1979. Volcanic activity and recent uplift on Curtis and Cheeseman Islands, Kermadec group, southwest Pacific. J Roy Soc New Zeal, 9: 123-140.

Latter J H, Lloyd E F, Smith I E M, Nathan S, 1992. Volcanic hazards in the Kermadec Islands, and at submarine volcanoes between southern Tonga and New Zealand. New Zeal Ministry Civil Defense, Volc Hazards Inf Ser, 4: 1-45.

Lloyd E F, 1991. Curtis volcano, Kermadec Group, a review and reinterpretation. Volc Seism, 1991(1): 117-121 (English translation 1992, 13: 128-134).

Lloyd E F, Nathan S, 1981. Geology and tephrochronology of Raoul Island, Kermadec Group, New Zealand. New Zeal Geol Surv Bull, 95: 1-102.

Richard J J, 1962. Kermadec, Tonga and Samoa. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 13: 1-38.

Curtis and nearby Cheeseman Islands are the uplifted portion of a submarine volcano astride the Kermadec Ridge. The age of the small islands is considered to be Pleistocene, and rocks consist dominantly, if not entirely, of andesitic pyroclastic-flow deposits (Lloyd, 1992). Curtis Island, only 500 x 800 m in diameter and 137-m high, contains a large, fumarolically active crater whose floor is only 10 m above sea level. Reports of possible historical eruptions probably represent increased thermal activity. Geologic studies have documented a remarkable uplift of 18 m of Curtis Island during the past 200 years, with 7 m of uplift occurring between 1929 and 1964 (Doyle et al., 1979). An active submarine magmatic or solfataric vent is believed to exist near Curtis Island, but its activity cannot unequivocally be associated with Curtis volcano (Lloyd, 1992).