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La Grille volcano

Shield volcano 1087 m / 3,566 ft
Grand Comore Island, Comoros, -11.47°S / 43.33°E
Current status: dormant (1 out of 5)
La Grille volcano books
Typical eruption style: unspecified
La Grille volcano eruptions: unknown, no recent eruptionsNo recent earthquakes
TimeMag. / DepthDistanceLocation

Background:

La Grille shield volcano at the northern end of Grand Comore Island (also known as Ngazidja) lacks a summit caldera like its larger and more well-known neighbor to the south, Karthala volcano. The basaltic La Grille volcano also contrasts with Karthala in its abundance of pyroclastic cones up to 800 m in height. The cones were erupted along fissures paralleling the summit ridge, which has an irregular profile and is elongated in a N-S direction, and from radial fissures that reach as far as the coast. 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.
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Smithsonian / GVP volcano information

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