The mudflow disaster at Villa Santa Lucía in Chilean Patagonia:  understandings and insights derived from numerical  simulation and postevent field surveys

Somos-Valenzuela, Marcelo A.; Oyarzún-Ulloa, Joaquín E.; Fustos-Toribio, Ivo J.; Garrido-Urzua, Natalia; Chen, Ningsheng

doi:https://doi.org/10.5194/nhess-20-2319-2020

Articles | Volume 20, issue 8

https://doi.org/10.5194/nhess-20-2319-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-20-2319-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 8

Research article

|

26 Aug 2020

Research article |

| 26 Aug 2020

The mudflow disaster at Villa Santa Lucía in Chilean Patagonia: understandings and insights derived from numerical simulation and postevent field surveys

Marcelo A. Somos-Valenzuela, Joaquín E. Oyarzún-Ulloa, Ivo J. Fustos-Toribio, Natalia Garrido-Urzua, and Ningsheng Chen

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Final revised paper (published on 26 Aug 2020)
Preprint (discussion started on 16 Mar 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Referee comment', Martin Mergili, 28 Mar 2020
- AC4: 'Answers to Reviewer 1 comments', Marcelo Somos-Valenzuela, 21 Jun 2020
RC2: 'Hidden Hazards: the conditions that potentially enabled the mudflow disaster at Villa Santa Lucia in Chilean Patagonia-version3', Haruyuki Hashimoto, 26 Apr 2020
- AC1: 'Answers to Reviewer 2 comments', Marcelo Somos-Valenzuela, 21 Jun 2020
RC3: 'Referee comment', Anonymous Referee #3, 30 Apr 2020
- AC3: 'Answers to Reviewer 3 comments', Marcelo Somos-Valenzuela, 21 Jun 2020
AC2: 'Answers to Reviewer 1 comments', Marcelo Somos-Valenzuela, 21 Jun 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Reconsider after major revisions (further review by editor and referees) (23 Jun 2020) by Daniele Giordan

AR by Marcelo Somos-Valenzuela on behalf of the Authors (30 Jun 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (03 Jul 2020) by Daniele Giordan

RR by Martin Mergili (07 Jul 2020)

RR by Anonymous Referee #3 (09 Jul 2020)

ED: Publish subject to technical corrections (16 Jul 2020) by Daniele Giordan

AR by Marcelo Somos-Valenzuela on behalf of the Authors (23 Jul 2020) Author's response Manuscript

Short summary

This work presents a study of the biggest mudflow event in 20 years in Chilean Patagonia, which resulted from an avalanche in the Cordon Yelcho. We integrate in situ geotechnical tests and numerical modeling to model the Villa Santa Lucía mudflow event. Our results suggest that the initial soil water content is sufficient to transform the landslide and scoured soil into a mudflow. Therefore, knowing the soil characteristics is crucial to evaluating the impact of landslides in the study area.