Rodolfo Console began his activity as seismologist in the Italian National Institute of Geophysics in 1968. Formally retired in 2004, he is still involved in research on statistical seismology, publishing more than 100 papers on international peer-reviewed journals.

Maura Murru is a Senior Researcher at the Istituto Nazionale di Geofisica e Vulcanologia (National Institute of Geophysics and Volcanology), Rome, Italy.

Giuseppe Falcone is a Research Associate at the Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy.