Rocard

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 17.642°S
  • 148.6°W

  • -2100 m
    -6888 ft

  • 333020
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

There are no activity reports for Rocard.



 Available Weekly Reports

There are no Weekly Reports available for Rocard.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1972 Jul 4 1972 Jul 19 Confirmed 0 Hydrophonic
1971 Sep 6 Unknown Confirmed 0 Hydrophonic
1966 Mar 9 1966 Mar 20 Confirmed 0 Hydrophonic

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.

Aubaud C, Pineau F, Hekinian R, Javoy M, 2005. Degassing of CO2 and H2O in submarine lavas from the Society hotspot. Earth Planet Sci Lett, 235: 511-527.

Barsczus H G, 1981. . (pers. comm.).

Hekinian R, Bideau D, Stoffers P, Cheminee J L, Muhe R, Puteanus D, Binard N, 1991. Submarine intraplate volcanism in the South Pacific: geological setting and petrology of the Society and Austral regions. J Geophys Res, 96: 2109-2138.

Talandier J, 1983. Activite volcanosismique de la region de Tahiti-Mehetia (Pacifique Central Sud) Crise Du Teahitia En Mars Et Avril. Laboratoire Geophysique Tahiti, unpublished ms, 82 p.

Talandier J, Kuster G T, 1976. Seismicity and submarine volcanic activity in French Polynesia. J Geophys Res, 81: 936-948.

Talandier J, Okal E A, 1984a. The volcanoseismic swarms of 1981-1983 in the Tahiti-Mehetia area, French Polynesia. J Geophys Res, 89: 11,216-11,234.

Rocard is a recently discovered submarine volcano about halfway between Tahiti and Mehetia islands. It displayed seismicity in 1966, 1971, and 1972 that may have resulted from submarine eruptions (Talandier and Custer, 1976). Rocks dredged from the volcano in 1986 "exploded" when they reached the surface, suggesting recent lava extrusion that had not yet had time to equilabrate with pressure and temperature conditions on the submerged flanks of the edifice. The summit of Rocard lies 2100 m below sea level east of Teahitia seamount and north of Moua Pihaa seamount. Rocard is much smaller than its neighboring seamounts.