  We study the potential of a very large volume underwater Mediterranean
neutrino telescope to observe neutrinos from supernova (SN) explosions within
our galaxy. The intense neutrino burst emitted in a SN explosion results in a
large number of MeV neutrinos inside the instrumented volume of the neutrino
telescope that can be detected (mainly) via the reaction \nu_e-bar + p -> e^+ +
n . In this study we simulated the response of the underwater neutrino
telescope to the electron antineutrino flux predicted by the Garching model for
SN explosions. We assumed that the neutrino telescope comprises 6160 direction
sensitive optical modules, each containing 31 small photomultiplier tubes.
Multiple coincidences between the photomultiplier tubes of the same optical
module are utilized to suppress the noise produced by $^{40}K$ radioactive
decays and to establish a statistical significant signature of the SN
explosion.

Instrumentation and Methods for Astrophysics;High Energy Astrophysical Phenomena