ZCZC GA84 NAVAREA I 156/26 NORTH SEA. FORTY MILE GROUND TO UTSIRA GROUND. SEISMIC SURVEY IN PROGRESS BY M/V RAMFORM HYPERION TOWING 10 X 2780 METRE LONG CABLES IN AREA BOUND BY 59-54.8N 000-31.6W 59-14.1N 001-28.0E 59-09.3N 001-25.4E 59-07.4N 001-34.8E 59-10.3N 001-43.6E 59-04.1N 002-00.9E 58-53.2N 001-45.0E 59-38.3N 000-31.3W. WIDE BERTH OF 3 MILES REQUESTED. M/V THOR MAGNI AND M/V 7 STARS IN ATTENDANCE. NNNN