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Ibu vulkaan
Stratovulkaan 1325 m / 4,347 ft
Halmahera, Indonesia, 1.48°N / 127.64°E
Current status: losbarstend (4 out of 5)
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Ibu vulkaanuitbarstingen:
2012-ongoing, 2009, 2008, 2004-05, 2001, 1998-99, 1911
Typical eruption style:
Explosieve
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Ibu volcano news

Ibu volcano (Halmahera Island, Indonesia): lava dome overtopping crater rim poses risk of pyroclastic flows

Sunday Jun 09, 2013 17:04 PM | DOOR: T

As the Indonesian Volcanological Survey (VSI) specified in its latest bulletin, parts of the active lava dome of the volcano have recently (early June) grown higher than the northern crater rim, where it is cut by a valley extending to the northern feet of the stratovolcano. Therefore, potential continued growth of the dome poses the risk of rockfalls and pyroclastic flows reach the northern flanks, where a number of villages are located, namely Pasilulu and Talen.
In addition, VSI scientists have detected an increase of seismicity and degassing since early May. This includes volcanic tremor from growing lava dome and deeper earthquakes, possibly related to new magma rising, and the occurrence of notable sulfur smell.
Ibu's activity has been characterized by the slow building of a new lava dome inside the breached summit crater since 1999. While present growth rate is still slow, and no or little incandescence is observed at the moment, the new seismic activity could herald a phase of more vigorous activity in the near future. In that scenario, the occurrence of dangerous landslides and pyroclastic flows would be likely and the northern slopes of the volcano should be considered a high risk zone.
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Koppelingen / Bronnen:
Vorig nieuws
Friday, Jun 07, 2013
The alert level of the volcano was raised to 3 ("Siaga", "alarm") on a scale of 1-4 by the Indonesian Volcanological Survey. [meer...]
Thursday, Oct 18, 2012
The MODVOLC detected thermal anomalies at Ibu on 17th September. Suggesting eruptive activity at the summit, possibly related to lava dome growth in the wide summit crater that has been documented since 2000. [meer...]

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