Publication Date:
2017-04-04
Description:
Many eruptions of Mt. Baekdusan volcano have been recorded in the historical literatures, and there were
unrest precursors in 2002. Based on the geological survey results, it has been recognized that Mt. Baekdusan’s Plinian
eruptions had caused ashfall, followed by the occurrence of pyroclastic flows, which were caused by the collapse of
eruption column. Therefore, we simulated the range of the impacts of pyroclastic flows, which were caused by small
eruptions from a specific crater. Based on the simulation results, it can be interpreted that, when the pyroclastic flows are
caused by the eruption column collapse from an eruption with less than VEI 3, the impacts will range from the outer rim
of the caldera to the mountain slope 7 km at the maximum distance. Furthermore, it is interpreted that, when the eruption
column occurs by the crater located inside the caldera, most will be deposited inside the caldera and what overflows will
be deposited thickly mostly in the north valley, the upper stream region of Erdaobaihe.
Description:
Published
Description:
615-625
Description:
3V. Dinamiche e scenari eruttivi
Description:
N/A or not JCR
Description:
restricted
Keywords:
Baekdusan
;
pyroclastic flow
;
small-scale eruption
;
volcanic disaster
;
impact zone
;
05. General::05.01. Computational geophysics::05.01.99. General or miscellaneous
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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