DOI: 10.5281/zenodo.10565007
title: Data used in the paper entitled: Unraveling the Complex Interplay: Exploring the Relationships between Seismic and Volcanic Activities in the Colca River Area Using the Coulomb Stress Transfer, published in Seismological Research Letters

description: We analyzed the static Coulomb stress transfer caused by the selected 28 largest earthquakes from 1991 to 2022 and by magmatic inflation in 2013–2022 to investigate the impact of the Coulomb stress transfer on the seismic activity of the Colca River area. Our results presented in Woszczycka et al. (2024; doi: 10.1785/0220230261) indicate more significance of the tectonic source, whereas the magmatic source seems to enhance the tectonic induced stress change. However, the Coulomb stress transfer does not appear to be of major importance for the seismicity of the region, because most of the analyzed crustal faults were not potentially brought closer to failure due to a positive Coulomb stress change caused by previous earthquakes or magmatic inflation.

We present a dataset of all information and values used in the article (Woszczycka et al., 2024; doi: 10.1785/0220230261), including:



Selected major earthquakes from the years 1991-2022 with correlated source faults (Woszczycka_et_al_Tab_1)

Source fault parameters used for individual Coulomb stress change calculations (Woszczycka_et_al_Tab_2) including sheets: CSC_1 – with fault planes projected to the depth of 12/12.1 km and hypocenter depths from the earthquake catalogs; CSC_2 – with fault planes projected to the depth of 12 km and hypocenter depths at 1 km; CSC_3 – with fault planes projected to the depth of 2 km and hypocenter depths at 1 km

Selected major Coulomb stress change calculation results on faults of specified orientation (tectonic source) (Woszczycka_et_al_Tab_3)

Coulomb stress change calculation results on faults of specified orientation (tectonic source) with fault planes projected to the depth of 12/12.1 km and hypocenter depths from the earthquake catalogs (Woszczycka_et_al_Tab_4; 45 source-receiver fault calculation results)

Coulomb stress change calculation results on faults of specified orientation (tectonic source) with fault planes projected to the depth of 12 km and hypocenter depths at 1 km (Woszczycka_et_al_Tab_5; 44 source-receiver fault calculation results)

Coulomb stress change calculation results on faults of specified orientation (tectonic source) with fault planes projected to the depth of 2 km and hypocenter depths at 1 km (Woszczycka_et_al_Tab_6; 44 source-receiver fault calculation results)

Coulomb stress change calculation results on nodal planes (magmatic source) (Woszczycka_et_al_Tab_7) for hypocenter depths from the earthquake catalogs (sheet: depth_catalog) and assumed at the depth of 1 km (sheet: depth_1km)

Statistical analyses (ANOVA and t-test) results investigating the difference between Coulomb stress change values calculated for two different hypocenter depths for the tectonic (sheet: receiver_faults) and magmatic (sheet: nodal_planes) source results.
description: This research was funded by the National Science Centre (Poland), Grant Number 2020/39/B/ST10/00042.