The 1927 Crimean earthquakes occurred in the month of June and again in September in the waters of the Black Sea near the Crimean Peninsula. Each of the submarine earthquakes in the sequence triggered tsunami. The June event was moderate relative to the large September 11 event, which had at least one aftershock that also generated a tsunami. Following the large September event, natural gas that was released from the sea floor created flames that were visible along the coastline, and was accompanied by bright flashes and explosions.
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