Secondary lahar hazard assessment for Villa la Angostura, Argentina, using Two-Phase-Titan modelling code during 2011 Cordón Caulle eruption

Córdoba, G.; Villarosa, G.; Sheridan, M. F.; Viramonte, J. G.; Beigt, D.; Salmuni, G.

doi:10.5194/nhess-15-757-2015

Articles | Volume 15, issue 4

https://doi.org/10.5194/nhess-15-757-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/nhess-15-757-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 4

Research article

|

08 Apr 2015

Research article |

| 08 Apr 2015

Secondary lahar hazard assessment for Villa la Angostura, Argentina, using Two-Phase-Titan modelling code during 2011 Cordón Caulle eruption

G. Córdoba, G. Villarosa, M. F. Sheridan, J. G. Viramonte, D. Beigt, and G. Salmuni

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Oct 2016	7	6	0	13
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Jan 2017	8	18	0	26
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Jan 2024	10	7	0	17
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Aug 2024	12	9	2	23
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Oct 2024	10	3	2	15
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Feb 2025	18	8	0	26
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Apr 2025	20	12	2	34
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Jun 2025	40	17	1	58
Jul 2025	34	20	1	55
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Sep 2025	18	12	0	30
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Cumulative views and downloads (calculated since 07 Oct 2014)

Month	HTML	PDF	XML	Total
Oct 2014	33	22	2	57
Nov 2014	7	7	0	14
Dec 2014	6	6	0	12
Jan 2015	4	10	0	14
Feb 2015	1	1	0	2
Mar 2015	8	9	0	17
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May 2015	28	20	10	58
Jun 2015	34	17	4	55
Jul 2015	30	30	0	60
Aug 2015	8	21	0	29
Sep 2015	1	22	1	24
Oct 2015	16	18	1	35
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Dec 2015	3	34	0	37
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Oct 2016	7	6	0	13
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Nov 2025	30	26	2	58
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Latest update: 06 Dec 2025

Short summary

This paper shows the results of secondary lahar modelling in Villa La Angostura town (Neuquén-Argentina) based on the Two-Phase-Titan modelling computer code. Possible occurrence of secondary lahars that could reach the city was analysed. The procedure allowed simulation of the path of flows from Florencia, Las Piedritas and Colorado creeks, which are the most influential streams in Villa La Angostura. The output of the modelling is a valuable tool for city planning and risk management.