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M7.9, 7.7 - Bougainville region, Papua New Guinea, 1975

These earthquakes struck the west coast of the island of Bouganville. The magnitude 7.9 earthquake generated a local tsunami that reportedly demolished every house in the village of Torakina. Bouganville Copper Ltd. ordered the evacuation of its giant mine at Panguna. The earthquakes cracked many buildings and caused a number of landslides. A number of magnitude 6 or greater aftershocks were recorded during the first 12-hour period following the main shock. Although many aftershocks were recorded, none caused additional damage. Despite the severity of the earthquakes, no fatalities were reported.
From Significant Earthquakes of the World 1975, and Earthquake Information Bulletin, Volume 7, Number 5.

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