The interval from 20/2/2021 to today was very high atmospheric pressure (high barometer) over the Aegean. In Attica, in 20/2/21 to date atmospheric pressure fluctuated at values above 1021 hPa. This means a drop of average sea level by 0.21 m.
Also on 27/2/2021 we had a new moon, therefore the appearance of tidal conjugation (Sun – Earth – Moon alignment), which brings the highest range of astronomical tide and the appearance of lower maritime level in the vine phase.
The declining trend in sea level, in addition, is explained by the impact of intense northern winds that prevailed in the Mediterranean between 25/2 and 3/3 which transported masses of water to the southern Mediterranean coast, where the level showed relative rise.
All of these factors caused the sea to fall back and expose parts of the bottom.
The fall in the level is a pre-seismic phenomenon because in areas of intense tectonic processes ′′ the tectonic forces raises ′′ the earth crust a few days before the quake and of course the level is lower.
THIS IS NOT APPLICABLE IN OUR CASE BECAUSE THE PHENOMENO IS NOT OBSERVED IN JUST ONE POSITION BUT IN ALL GREECE.
Source – FB post of Akis Tselentis