June 26, 1927 Tsunami: Crimea, Black Sea, Ukraine

1927, June 26, 11:20:48 UTC. 44o,24'N, 34o24 E., magnitude 6.0, intensity VIII. The earthquake generated a tsunami. Description by Nikonov (ref #9935): the sea receded by 1.5 m, coming back to the shore of the village of Gurzuf; at Yalta sea fell by 0.18 m and then rose by 0.16 m; at Sevastopol sea rise observed; at Feodosta, weak wave observed; at Alupka sea retreat followed by beach flood with max runup by 0.7m; at Tuapse beach flood. Recorded in tide-gauge stations in the northern Black Sea, with a peak-peak amplitude not exceeding 10 cm. Copies of two records from Novorosiisk and Tuapse reproduced in Ranguelov (ref #9156). (reference #4139)

Alushta. An underground roar and loud noise along with a strong shock and aftershock, occurred over a period of 5 seconds. Trees shook and glass rattled, as did iron shingles on the roofs; some light objects fell; there were rockslides in the Demerdzhi and Kastell Mountains; a tsunami up to 0.7 m in height was noted on the seacoast in a north-east direction. Subsequent shocks occurred at 15 and 17 hours... (reference #223)

Data published in Russian sources have shown that a strong earthquake with a magnitude of 6.0 occurred possibly on the submarine slope south of Yalta and caused a local tsunami on the south coast of Crimea […] Eyewitnesses noted that the sea bottom topography changed with the earthquake by a downward shift of silt on submarine rocks along the Crimean coastal zone, and that “changes in the sea level in the western and eastern parts of the Kerch Strait and, in general, the sea was stormy and rough throughout the entire earthquake” (Dotsenko, 1995, from various Russian sources; also Pelinovsky, 1999) […] Considering the eyewitness acounts, we are in favour of the suggestion that the tsunami of 26 June 1927 was triggered by submarine slumps initiated by the earthquake. (reference #9391)