"He [Aristobulus] says that when he was sent on some business, he saw a tract of land deserted which contained more than a thousand cities with their villages, for the Indus, having forsaken its proper channel, turned itself into another on the left much deeper, into which it burst like a cataract, so that it no longer watered the country on the right, from which it receded, for this had been raised by the inundations not only above the level of the new channel but even above that of the new inundations... ‘India is liable to earthquakes as it becomes porous from the excess of moisture and opens into fissures, whence even the course of rivers is altered’."