Suzuki, Akiko, and Iunio Iervolino. “Italian Vs. Worldwide History of Largest PGA and PGV”. Annals of Geophysics 60, no. 5 (August 3, 2017): S0551. Accessed September 20, 2021. https://www.annalsofgeophysics.eu/index.php/annals/article/view/7391.