El Hierro 2011-2012 Enhanched Seismic Catalogs

The datasets presented here consist of high-resolution seismic catalogs generated for the volcanic crisis of El Hierro (2011–2012), covering the pre-eruptive, syn-eruptive, and post-eruptive phases. Seismic events were detected using template matching techniques, significantly enhancing the detection of low-magnitude seismicity compared to conventional catalogs. Hypocentral locations were subsequently computed using the Hypoellipse algorithm, based on P- and S-wave arrival times recorded by the local seismic network. Each event entry includes an identifier, origin time, geographic coordinates (latitude and longitude), depth, and phase picks per station, providing a consistent and detailed dataset suitable for analyzing the spatiotemporal evolution of seismicity and magma migration throughout the entire eruptive sequence.