During the September earthquake, observers reported seeing large fiery flares erupting from the Black Sea ranging from 20 to 500 meters high. These flames were probably caused by the combustion of methane eruptions triggered by the earthquake.
Decades later, the maximal expected earthquake intensity was reestimated from 6 to 9 on the Richter scale, resulting in the abandoning of the construction of the Kerch Nuclear Power Plant after almost 10 years of construction.