According to the National Agency of Hydrography and Oceanography, this is due to climate change
The sea level on the coast of the Korean peninsula has risen by almost 10 cm over the past 33 years as a result of climate change. This was reported on Monday by the Yonhap agency with reference to data from the National Agency of Hydrography and Oceanography.
Data on sea level changes have been collected since 1989 at 21 stations that are installed on the coast of South Korea. On average, the sea level during this period increased by 3 mm per year.
The fastest rate of increase was recorded in the Sea of Japan, where the water recaptured from the land an average of 3.5 mm per year. This process was slowest on the southern coast, washed by the East China Sea – here the rate of increase was 2.5 mm per year. At the same time, in the southern port city of Mokpo, where the oldest observation station of the republic is located, a sea level rise of 15.4 cm was recorded for 62 years, which corresponds to a growth rate of 2.5 mm per year.
A source https://tass.ru/obschestvo/16627399
