There is a complex interaction
between earthquakes and
volcanic eruptions. Currently,
swarms of small earthquakes can
be used to predict the possibility
of a major eruption. In general,
earthquake prediction is very
difficult. Good news here - no
volcanic threats around the Sea of
Marmara or generally along
Turkish coasts. Some of the
earliest Turkish art and pottery
depicts eruptions of Hasan Dagi.
For the moment, we'll assume
nothing like Toba, Tomba or
Krakatoa will impact Turkey in
the immediate future.
There are no appreciable tides in
the Dardanelles, Sea of Marmara,
Black Sea or the Bosphorus.
There are some nasty currents.