Salomon ben Zemah References
Translations and Original Texts
Guidoboni, E. and A. Comastri (2005). Catalogue of Earthquakes and Tsunamis in the Mediterranean Area from the 11th to the 15th Century, INGV
Mann J. 1920, The Jews in Egypt and in Palestine under the Fatimid Caliphs, Vol. II Oxford. - can be borrowed with a free account from archive.org -
account is on pages 176-178 - link is bookmarked to page 176