Tiberias Landslide Quake (850-854 CE)
An earthquake is reported to have struck the city of
Tiberias during the night. According to historical
traditions preserved in later Arabic chronicles, the
shock was strong enough that the ground was perceived
to shift, the surrounding mountains shook, and a
landslide or rockslide caused fatalities.
as-Suyūṭī records that "an earthquake shook
T'abariyya [Tiberias] to the point that the ground moved
[shifted]."
A more detailed description is preserved by
Ibn al-ʿImād, who writes that "during the
night, the earth shook at Tiberias." He further reports
that "the mountains shook, and then a big rock — eighty
cubits by fifty [roughly 40 x 25 m] — split open." This description suggests
that the shaking triggered a large rockfall or landslide
in the mountainous terrain surrounding the city, an
event that reportedly caused numerous casualties, as
Ibn al-ʿImād notes that "many people died."
A similar report is also recorded by the earlier source
Ibn al-Jauzi in Sedhut I85a, where, according
to Ambraseys (2009),
the same information appears as that preserved by
as-Suyūṭī and
Ibn al-ʿImād.