13^6 Water ebting. Crest reached 22.8 feet above staff zero. 



1U38 Water rising. 



1530 Tide gage overhauled and placed hack in operation. Staff 

 reading I8.7 feet. 



1659 Slight tremor. 



1902 Slight tremor, continuing at intervals until 1930. 



2030 Slight tremor. 



2217 Slight tremor. 



2230 Tide staff reading l6.3 feet. 



290125 Received report that Cape Hinchinhrook sustained large tremors 

 of 5 second duration in last hour. Severe shock wave reported 

 in Prince William Sound area. 



08i+5 Tide staff reading 12.1 feet. 



1810 Received HO tsunami DTG 300351Z. 



1835 Replied to HO. Staff 13.8 feet. Maximum height past 6 hours 

 20.6 feet at 291^00 AST. 



30011414 High tide estimated 22 feet above staff zero. 



0212 Slight tremor. 



0^10 Slight tremor (rolling motion). 



1700 Irregular marigram. Staff reading 17-5 feet. 



310015 Coast Guard Cutter SEDGE reports tides 6 to 8 feet below normal 

 at Cape Hinchinhrook. 



0815 Staff reading 11.1 feet 

 APRIL 



010825 Staff reads 12. U feet. 



I5I+3 Staff reads l8.3 feet. 



2200 Staff reads 13-8 feet. 



020330 Coast and Geodetic Survey set up a seismograph in Tower Bldg. 



A-5 



