Seismic Dataset Related to "Asymmetric Trans-Crustal Magmatic-Hydrothermal System Imaged with Magnetotellurics: Ubinas Volcano, Southern Peru"

This project was developed within the framework of the agreement between the Instituto Geofísico del Perú (IGP) (https://www.gob.pe/igp) and the Institut de Recherche pour le Développement (IRD), France (https://ird.fr/peru). Data This dataset contains the volcano-tectonic (VT) earthquake catalog for Ubinas Volcano, southern Peru, covering the period from 2013 to 2023. The catalog was compiled using seismic data from the Instituto Geofísico del Perú (IGP) and complementary seismic data provided by the Instituto Geológico, Minero y Metalúrgico (INGEMMET). The locations of the seismic stations are shown in Figure 1 of the associated manuscript. The file Ubinas_VT_Earthquake_Catalog_2013_2023.csv contains 1,352 relocated volcano-tectonic (VT) earthquakes. Hypocentral parameters were determined using the HYPOELLIPSE algorithm (Lahr, 1999), together with the one-dimensional seismic velocity model proposed by Machacca (2024). For each event, the catalog provides the origin date and time (UTC), hypocentral location (latitude, longitude, and depth referenced to mean sea level), the number of seismic phases used for the location, azimuthal gap, root mean square (RMS) travel-time residual, and location quality. This dataset supports the analyses presented in the manuscript: Torres, J.-L., Byrdina, S., Tavera, H., et al. (2026). Asymmetric trans-crustal magmatic-hydrothermal system imaged with magnetotellurics: Ubinas Volcano, southern Peru. (Under review). In the associated study, the VT earthquake catalog was integrated with three-dimensional broadband magnetotelluric (MT) imaging to investigate the spatial relationship between volcano-tectonic seismicity and the electrical resistivity structure beneath Ubinas Volcano. The combined interpretation provides new insights into the geometry of the trans-crustal magmatic system, hydrothermal fluid circulation, and the structural controls governing volcanic activity. The repository contains the following files: Ubinas_VT_Earthquake_Catalog_2013_2023.csv – Relocated catalog of 1,352 volcano-tectonic earthquakes recorded between August 2013 and December 2023. README.txt – Documentation describing the dataset, file structure, variables, authorship, contact information, and recommended citation. This dataset is released to promote transparency, reproducibility, and data reuse in future studies of volcanic seismicity, magmatic systems, hydrothermal systems, crustal structure, and volcanic hazards. The dataset may be cited independently using the DOI assigned by Zenodo. Acknowledgments The authors acknowledge the Instituto Geológico, Minero y Metalúrgico (INGEMMET) for providing complementary seismic data for the period 2014–2023. These data were used together with seismic observations from the Instituto Geofísico del Perú (IGP) to compile the 2013–2023 volcano-tectonic earthquake catalog for Ubinas Volcano.