[5] Stepan Krasheninnikov, a Russian explorer, reported the effects of the earthquake in his 1755 publication Description of Kamchatka Land.

A maximum tsunami amplitude of 12 to 16 metres (39 to 52 ft) was estimated on Amchitka based on evaluating the height where driftwood was found on the island.

When Georg Wilhelm Steller, a German scientist and explorer, visited the region in 1740, he noted the bones of marine mammals and driftwood discovered well above the shoreline.

Another wave measuring 30 sazhen] or 63 metres (207 ft) struck the coast, killing many natives and destroying their settlements.

The force of the tsunami was so powerful that it stripped away dirt and sand, revealing the basement rocks of the Second Kuril Strait.