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Todoko-Ranu volcano

complex volcano 979 m / 3,212 ft
Halmahera, Indonesia, 1.25°N / 127.47°E
Current status: dormant (1 out of 5)
Todoko-Ranu volcano books
Typical eruption style: Explosive
Todoko-Ranu volcano eruptions: none in historic times
TimeMag. / DepthDistanceLocation
Fri, 13 Oct
Fri, 13 Oct 15:02 UTCM 4.5 / 10 km33 kmHalmahera, Indonesia
Sun, 8 Oct
Sun, 8 Oct 14:26 UTCM 3.1 / 2 km6 km3.1 HALMAHERA, INDONESIA
Sun, 8 Oct 06:54 UTCM 3.2 / 5 km10 km3.2 HALMAHERA, INDONESIA
Sun, 8 Oct 05:21 UTCM 2.5 / 3 km19 km2.5 HALMAHERA, INDONESIA
Sun, 8 Oct 04:11 UTCM 3.6 / 5 km25 km3.6 HALMAHERA, INDONESIA
View all recent quakes
Todoko-Ranu Volcano in north-western Halmahera 15 km SW of Gamkonora volcano is a part of a larger volcanic complex, which contains 2 calderas. One of the calderas, Ranu caldera, contains a crater lake.

Background:

The twin caldera complex of Todoko-Ranu is part of a large volcanic complex south of Gamkonora. The 2-km-wide, lava-filled Todoko caldera is south of the 2 x 2.8 km wide nested Ranu calderas and contains a young post-caldera cone, Sahu, on its south flank. The northern Ranu caldera contains a caldera lake. Gunung Onu, NW of Ranu caldera, lies at the northern end of the Todoko-Ranu complex. No historical eruptions have been reported from the complex, mapped as Holocene by Supriatna (1980), but fumaroles are present at Ranu caldera and hot springs on Mt. Sahu. Youthful-looking lava flows reach the sea from several locations within the complex.
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Supriatna S, 1980. Geologic map of Morotai quadrangle, north Maluku. Geol Res Devel Centre Indonesia, 1:250,000 scale map and 10 p text
Source: GVP / Smithsonian Institution


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