Here is a cropped version of that photo:
Another user cites Wikipedia:
On 26 July 1945 her Task Force was attacked by two attack bombers acting as "Kamikaze" suicide weapons. One made an imprint on the side of the HMS Sussex, from which it could be identified as a Mitsubishi Ki-51 "Sonia".
They also linked to a gif that purports to illustrate how the plane hit.
Does this photo represent the result of a 1945 kamikaze attack on HMS Sussex?