The 8.6 Mw Andreanof Islands earthquake shakes the Aleutian Islands with a maximum Mercalli intensity of VIII (Severe), causing $5 million in damage from ground movement and a destructive tsunami that affected Hawaii, where two people were killed in a plane crash while documenting its arrival.
The 1957 Andreanof Islands earthquake took place on March 9 with a moment magnitude of 8.6 and a maximum Mercalli intensity of VIII (Severe). It occurred south of the Andreanof Islands group, which is part of the Aleutian Islands arc. The event occurred along the Aleutian Trench, the convergent plate boundary that separates the Pacific Plate and the North American Plates near Alaska. A basin wide tsunami followed, with effects felt in Alaska and Hawaii. Total losses were around $5 million.