Sadly, poor Sakawa-chan probably still has nightmares about her participation in the test.
The detonation of the Able bomb occurred 490 yards (450 m) above and slightly to starboard of Sakawa's stern. The blast caused Sakawa to burn fiercely for twenty-four hours; the force crushed her superstructure, damaged her hull and breached her stern. After the test, a tug boat, USS Achomawi, tried to tow Sakawa toward a beach to prevent the latter ship from sinking, but failed. Sakawa started sinking almost as soon as towing began, and, with a tow cable connecting the two ships, Achomawi started to be dragged down, too. After a number of attempts, sailors cut the tow cable with an acetylene torch. Sakawa sank on 2 July 1946 in about 200 feet (60 m) of water, with a portion of the tow cable still attached.
The second weapons test, Baker, was an underwater shot about 500 feet (150 m) away from the sunken Sakawa.
--Wikipedia, Japanese Cruiser Sakawa