Note 7 — Chapter XLVIII · KAMCHATKA.
Reading edition
Mr. Hill describes one lasting no less than eight minutes. During the whole of this time rumbling and loud noises were heard beneath the ground, and the earth trembled violently. Some of those who experienced it said they thought at one moment that the earth was sinking beneath them, and the sea about to rush in upon the land, and the next that they were rising upon the crust of the crater of a volcano in terrible eruption beneath the ground.