Reconstructing the Kolka surge on September 20, 2002 from the instrumental seismic data
Abstract
The process of the Kolka rock and ice avalanche on September 20, 2002 in the Karmadon Gorge, North Ossetia is reconstructed based on analyzing the instrumental seismic records. The results of calculating the velocities of the rock-ice mass movement on the interval from the Maili Glacier to the Karmadon Gate agree with the results of mathematical modeling the avalanche flow in a gorge. The macroseismic effect of the surge impact on the rocks in the region of the Karmadon Gate is investigated from seismic data and the results of surveying the territory carried out by the authors in 2003-2004.
- Publication:
-
Izvestiya Physics of the Solid Earth
- Pub Date:
- September 2014
- DOI:
- 10.1134/S1069351314050097
- Bibcode:
- 2014IzPSE..50..707Z
- Keywords:
-
- Kolka glacier;
- avalanche flow;
- intensity;
- flow velocity