Physical Processes at the Source of a Tsunami of Seismotectonic Origin - Physics of Tsunamis - page 49

(a)

(b)

Fig. 2.7 Bottom deformations (a—is the length of the horizontal component, b—the vertical com-
ponent) due to the Central Kuril Islands earthquake of November 15, 2006. The isolines are drawn
in steps of 0.2 m. Calculations are performed applying Yoshimitsu Okada's formulae in accordance
with USGS NEIC slip distribution data (see also Plate 4 in the Colour Plate Section on page 312)

∼ η

of magnitude: A 0 . The amplitude of the wave being small in comparison with

its length A makes it possible to apply linear theory. The motion of the liquid

will be considered potential. Consider a layer, infinite in the 0 xy plane, of an ideal
incompressible homogeneous liquid of constant depth H in the field of gravity. We

λ