Articles | Volume 17, issue 5
https://doi.org/10.5194/se-17-711-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-17-711-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
12 May 2026
Research article |
| 12 May 2026
| 12 May 2026
Deciphering the crustal structure of the Lerma Valley (NW Argentina): a multi-method seismic investigation
Emilio J. M. Criado-Sutti
CORRESPONDING AUTHOR
Institut für Geowissenschaften, Universität Potsdam, Karl-Liebknecht-Str. 24–25, 14476, Potsdam-Golm, Germany
Instituto de Bio y Geociencias del NOA (IBIGEO), UNSa-CONICET, Av. 9 de Julio 14, A4405BBA Rosario de Lerma, Salta, Argentina
Andrés Olivar-Castaño
Institut für Geowissenschaften, Universität Potsdam, Karl-Liebknecht-Str. 24–25, 14476, Potsdam-Golm, Germany
Frank Krüger
Institut für Geowissenschaften, Universität Potsdam, Karl-Liebknecht-Str. 24–25, 14476, Potsdam-Golm, Germany
Carolina Montero-López
Instituto de Bio y Geociencias del NOA (IBIGEO), UNSa-CONICET, Av. 9 de Julio 14, A4405BBA Rosario de Lerma, Salta, Argentina
Germán Aranda-Viana
Instituto de Bio y Geociencias del NOA (IBIGEO), UNSa-CONICET, Av. 9 de Julio 14, A4405BBA Rosario de Lerma, Salta, Argentina
Martin Zeckra
Erdbebenstation Bensberg, Universität zu Köln, Vinzenz-Pallotti-Str. 26, 51429 Bergisch Gladbach, Germany
Sebastian Heimann
Institut für Geowissenschaften, Universität Potsdam, Karl-Liebknecht-Str. 24–25, 14476, Potsdam-Golm, Germany
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Short summary
We studied the deep structure beneath the Lerma Valley in northwestern Argentina to better understand how the Earth's crust behaves in this active but little-studied region of the Andes. Using data from local and teleseismic earthquakes, we mapped layers within the crust and found major contrasts between the northern and southern areas. Our results shed new light on how this region formed and evolved, offering important insights into earthquake risks and mountain-building processes.
We studied the deep structure beneath the Lerma Valley in northwestern Argentina to better...
