  Extrapolating from a sample of 39 AGNs, we examine the impact on the total
number of high energy muon-neutrino induced events (PeV-EeV) expected in
IceCube (a 1Km^3 ``neutrino telescope''), due to variations in different
parameters involved in the neutrino flux, such as the emission region geometry,
the estimation models and distributions of the Doppler factor and the
variability time. This work has been done taking into account different limits
of the extragalactic neutrino flux.
  Among our conclusions, we find, in the case of the largest variability time,
that the cylindrical geometry hypothesis for the emission region, produce a
separation of 3 sigma in the total number of events relative to the spherical
hypothesis. In addition, for similar choices of the burst time, spherical
geometry and for the upper neutrino flux bound, we obtain a separation of 2.5
sigma in the total number of events, for some of the Doppler factor
estimations. These differences are undistinguishable for other input values.
