Abstract

The 6.1 Richter Scale earthquake on February 25, 2022 in Pasaman district and West Pasaman district caused landslides around Mount Talamau with an avalanche outcrop of 1,200 hectares, resulting in debris flow in a number of tributaries in rivers of Bt. Nango, Bt. Lampang, Bt. Timbo Abu, Bt. Tobi, Bt. Sopan, Bt. Muaro Tayo in Talamau subdistrict, West Pasaman district and the rivers of Bt. Haluan, Bt. Tampa, Bt, Malampah, Bt. Kilangan in Malampah subdistrict, Pasaman district. The potential for debris flow can still occur when the rainfall intensity exceeds 50 mm/day with a discharge of 107 m3/sec and a debris volume of 5,000,000 m3 in one of 10 tributaries around Mount Talamau. The estimated total volume is estimated at 24 million m3 currently deposited in the sediment zone of 1,200 hectares of landslide outcrop area.

Details

Title
Potential debris flow after earthquake in Mount Talamau Pasaman district and West Pasaman district
Author
Bari, F 1 ; Istijono, B 1 ; Yuhendra, R 2 ; Hakam, A 3 ; Noer, M 1 ; Ophiyandri, T 3 

1  Post Graduate School, Universitas Andalas , West Sumatra , Indonesia 
2  Water Resources Development Provincial Office of West Sumatra Province , Indonesia 
3  Department of Civil Engineering, Universitas Andalas , West Sumatra , Indonesia 
First page
012069
Publication year
2023
Publication date
May 2023
Publisher
IOP Publishing
ISSN
17551307
e-ISSN
17551315
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1088/1755-1315/1173/1/012069
ProQuest document ID
2813994458
Copyright
Published under licence by IOP Publishing Ltd. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.