Adams Seamount

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 25.37°S
  • 129.27°W

  • -39 m
    -128 ft

  • 333050
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Adams Seamount.

 Available Weekly Reports

There are no Weekly Reports available for Adams Seamount.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
0050 BCE ± 1000 years Unknown Confirmed 0 Potassium-Argon
1050 BCE ± 1000 years Unknown Confirmed 0 Potassium-Argon
4050 BCE ± 2000 years Unknown Confirmed 0 Potassium-Argon
5050 BCE ± 1000 years Unknown Confirmed 0 Potassium-Argon

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.

Guillou H, Garcia M O, Turpin L, 1997. Unspiked K-Ar dating of young volcanic rocks from Loihi and Pitcairn hot spot seamounts. J Volc Geotherm Res, 78: 239-249.

Hekinian R, Cheminee J L, Dubois J, Stoffers P, Scott S, Guivel C, Garbe-Schonberg D, Devey C, Bourdon B, Lackschewitz K, McMurtry G, Le Drezen E, 2003. The Pitcairn hotspot in the South Pacific: distribution and composition of submarine volcanic sequences. J Volc Geotherm Res, 121: 219-245.

Stoffers P, Hekinian R, Ackermand D, Binard N, Botz R, Devey C W, Hansen D, Hodkinson R, Jeschke G, Lange J, Van de Perre E, Scholten J, Schmitt M, Sedwick P, Woodhead J D, 1990. Active Pitcairn hot spot found. Marine Geol, 95: 51-55.

Adams Seamount was constructed above the Pitcairn hot spot in the central Pacific, about 90 km WSW of Pitcairn Island. The massive seamount rises about 3500 m to within 59 m of the sea surface about 25 km SW of another large submarine volcano within the Pitcairn hot spot, Bounty Seamount. The Pitcairn hot spot was built over 30-million-year-old Pacific Ocean crust, and in addition to the two large volcanoes, Adams and Bounty seamounts, contains about 20 small volcanic hills about 500 m high. Although Bounty Seamount, which rises to within 450 m of the sea surface, appears morphologically more youthful than Adams and water samples indicate continuing hydrothermal activity, two late-Pleistocene Potassium-Argon dates of about 338,000 and 350,000 years were obtained from the flanks of Bounty. Alkali basaltic rocks were dredged from the flanks of Adams Seamount, whose summit appears to consist of a trachytic lava dome. Several Potassium-Argon dates of Holocene age were obtained from dredges at Adams Seamount (Guillou et al., 1997), the youngest of which was 2000 /- 1000 years.