HomeEarthVolcanic blast is not the cause for Indonesian island collapse

Volcanic blast is not the cause for Indonesian island collapse

New research has found out that the collapse of Indonesia’s Anak Krakatau volcano have resulted from long-term destabilizing processes. It was not triggered by any distinct changes in the magmatic system.

The volcano had been erupting for six months before the collapse. It saw two-thirds of its height slide into the sea as the island halved in area. This caused a devastating tsunami. This led to inundated the coastlines of Java and Sumatra. The tsunami led to the deaths of more than 400 people.

University of Birmingham researchers have examined volcanic material from nearby islands. They tried to find clues to determine whether if the explosive eruption after the collapse has triggered the landslide and tsunami. The findings have been published in Earth and Planetary Science Letters.

Scientists looked at the physical and chemical characteristics of the erupted material. They found out that the large explosive eruption is related with the collapse was caused by the underlying magmatic system.

Scientists think that this disaster is not caused by magma forcing. Volcano monitoring methods have recorded seismic activity and other signals that was generated by magma rising through the volcano. But this event was not caused from within, so, it would not been detected by using these techniques.


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