SIRWOLTE
Event description
During heavy precipitation and simultaneous with the
extreme flood event in the nearby town of Brig, the outburst of a
moraine-dammed proglacial lake at Sirvolten
caused the formation of a 10 to 20 m deep breach. Numerous debris flow pulses
in the meltwater stream (Ritzibach)
reached the torrent in the main
Damage
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The increased sediment load of which caused
considerable damage on the Simplon highway further downvalley.
Data source
IAHS (ICSI) � UNEP � UNESCO (1998): Fluctuations of
glaciers 1990�1995, Vol. VII (Haeberli, W., Hoelzle, M., Suter, S.,
Frauenfelder, R.). World Glacier Monitoring Service,
Remarks