The 1688 Smyrna earthquake (Turkish: 1688 İzmir depremi) first occurred on 30 June. A second earthquake struck eleven days later at 11:45 on 10 July, and lasted 10 seconds according to the information provided by the British earthquake scientist Nicholas Ambraseys (1929–2012), who published the reports of the French Consulate of the period. It had an epicenter close to Smyrna, Ottoman Empire (today İzmir, Turkey). It had an estimated magnitude of 7.0 Ms, with a maximum felt intensity of X (Extreme) on the Mercalli intensity scale and caused about 16,000 casualties. A tsunami and a fire followed the earthquake.
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