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PACIFIC SCIENCE, Vol. XXI, July 1967 
Fig. 3- Marigram of wave activity at the town of Yakutat. 
downtown section of Valdez, ruining almost all 
the merchandise in the stores. These waves 
could not have come from the generating area 
outside Prince William Sound because if this 
were so, it would have taken them only 34 
minutes to reach Valdez. It is more likely, then, 
that the waves at Valdez arrived in resonance 
at high tide, from the immediate area of Port 
Valdez. 
Maximum positive crustal displacement in 
Prince William Sound occurred along the north- 
west coast of Montague Island and in the area 
offshore. These earth movements caused a gra- 
dient in hydrostatic level and the resulting 
short-period wave raced through Knight Island 
Passage within 10 minutes and on toward Che- 
nega Island, inundating the village of Chenega 
to an elevation of 15.5 m and completely de- 
stroying it. This same wave continued north 
through Knight Island Passage and inundated 
Perry and Naked islands, but to lesser heights 
(Berg et ah, in preparation). 
Bathymetric surveys by the USCGS (1964) 
in the area off Montague Island and at the 
north end of Latouche Island revealed a num- 
ber of large submarine slides. It is possible, 
therefore, that the combination of submarine 
slides and the tilting of the ocean floor due to 
uplift created the solitary wave reported at 
Chenega village and at Perry and Naked islands. 
A second wave about 40 m high (125 ft) 
was reported coming out of the Valdez Narrows 
