La Grille

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 11.47°S
  • 43.33°E

  • 1087 m
    3565 ft

  • 233001
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for La Grille.

The Global Volcanism Program has no Weekly Reports available for La Grille.

The Global Volcanism Program has no Bulletin Reports available for La Grille.

The Global Volcanism Program is not aware of any Holocene eruptions from La Grille. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the La Grille page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

The Global Volcanism Program has no synonyms or subfeatures listed for La Grille.

Photo Gallery


Grand Comore Island in the Indian Ocean NW of Madagascar is formed by two massive shield volcanoes. The more well-known and historically active Karthala volcano at the southern end of the island has a 3 x 4 km summit caldera. Elongated rift zones extend to the NNW and SE; the lower SE rift zone forms the Massif du Badjini, a peninsula at the SE tip of the island (bottom right). The Holocene La Grille volcano forms the northern part of the island. Youthful lava flows from both volcanoes have reached the coast.

NASA Space Shuttle image STS***********, 1983 (http://eol.jsc.nasa.gov/).
See title for photo information.
Cloud banks drape the flanks of the massive Karthala shield volcano at the southern end of Grand Comore Island. A pyroclastic cone of La Grille, another massive shield volcano that forms the northern part of the island, lies along the coast in the foreground. Karthala contains a 3 x 4 km summit caldera, and elongated rift zones extend to the NNW and SE from the summit of the Hawaiian-style shield. More than twenty eruptions have been recorded at Karthala since the 19th century, but no historical eruptions are known from La Grille volcano.

Copyrighted photo by Steve and Donna O'Meara, 2002.
See title for photo information.
Pyroclastic cones drape the eastern flanks of La Grille shield volcano at the northern end of Grand Comore Island (also known as Ngazidja). La Grille contrasts with its larger and more well-known neighbor to the south, Karthala volcano, in its lack of a summit caldera and in its abundance of pyroclastic cones up to 800 m in height. Recent lava flows, some perhaps as young as a few hundred years, have reached the sea from fissures on the lower western, northern, and eastern flanks of La Grille.

Copyrighted photo by Steve and Donna O'Meara, 2002.
See title for photo information.

Smithsonian Sample Collections Database


There are no samples for La Grille in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites