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On 18 January 2010, 15:56 UTC, a Mw = 5.1 (National Observatory of Athens; NOA) earthquake occurred near the town of Efpalion (western Gulf of Corinth, Greece), about 10 km to the east of Nafpaktos, along the north coast of the Gulf. Another strong event occurred on 22 January 2010, 00:46 UTC with Mw = 5.1 (NOA) approximately 3 km to the NE of the first event. We processed the seismological...