https://phys.org/news/2018-11-tremors-greek-island-minutes.html

Seven minutes later, a 5.0 magnitude tremor hit 59 kilometers (37 miles) southwest of the island at a depth of 7 kilometers (4.3 miles).

Zakynthos was hit by a magnitude 6.4 earthquake on Oct. 26. Since then, there have been 21 aftershocks of at least 4.0 magnitude, with the strongest being magnitude 5.5.

                                                            
                                    
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