M 6.0 - 5 km N of Patitírion, Greece

According to press reports, 2 people were killed and 85 percent of the buildings on Alonnisos and Skopelos were destroyed. The shock was felt throughout Greece and in Canakkale and Edremit, Turkey. A tsunami was observed on Kyra Panagia and Skiathos.

Abridged from United States Earthquakes, 1965.

Main shock of a long series whose epicentral zone lines in the Aegean Sea along a line joining the islands of Skiathos, Skopelos and Alonnisos. Much damage was done on the small island of Alonnisos; 173 houses were destroyed and 928 seriously damaged; there were 2 dead and 2 injured; intensity IX-X was recorded at Patitiri (Alonnisos), VIII at Alonnisos, VII at Glossa on the island of Skopelos which had already been damaged on 23 February and 20 April 1964; the shock was felt strongly on the islands of Skiathos, Ayios Evstratios and Skiros; the macroseismic area was 320,000 square kilometres and the shock was felt over a wide area in Turkey, at Bursa, Edirne, Balikesir, Izmir, etc.

Abridged from Rothe, J.P., 1969, The seismicity of the earth, 1953-1965: Paris, United Nations Educational, Scientific and Cultural Organization, 336 p.