Wald DJ, Quitoriano V, Worden CB, Hopper M, Dewey JW. USGS “Did You Feel It?” Internet-based macroseismic intensity maps. Ann. Geophys. [Internet]. 2012 Jan. 14 [cited 2026 May 25];54(6). Available from: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5354