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Precis File
SHIP NAME: Heimvard KEY: NUM. ENTRIES: 2
source HOOKE
type D
volume 26771T
material
dead 10
link

Eight crew members died and another eight were injured as a result of a massive explosion and fire when the one-year old Norwegian motor tanker Heimvard struck a refinery jetty at speed at Muroran, Hokkaido on May 23, 1965. Two Japanese also died on board their tug Koryu Maru, which sank while assisting the Heimvard to berth. The Heimvard from Ras Tanura loaded with 26,771 tons of Saudi crude, began spilling oil into the harbour. The impact caused a kerosene stove on the Koryu Maru to topple over, the flames from which spread across the floating oil to the Heimvard, sparking off an explosion in her leaking tank that ripped a 50 ft square hole in her side. The fire then spread to other tanks, engulfing the Heimvard in flames. Seaman were seen jumping into the flaming oil that spewed from the gaping hole in her bow in an effort to escape from the inferno on the vessel. The Heimvard drifted across the harbour until running aground on a sandbank, with three further explosions tearing more holes in her.


source CTX
type D
volume 32MML
material
dead 10
link

One source puts the spill at 14.7MM gallons but this does not jibe with Hooke. The phrase "at speed" hints that maybe there was a machinery failure. It is very unusual that a berthing problem generates this kind of casualty. But at this point we dont know. Sounds like inerting might have helped a lot.

Not clear why a 58,000 dwt ship only has 27000 tons on board.

The CTX Activity field says only loaded, perhaps we need a way of specifying mooring/unmooring.