(Adds context, detail on other rail lines)
By Tom Westbrook
SYDNEY, April 11 (Reuters) - The first coal train from an Australian mining area devastated by a cyclone reached port in northern Queensland state on Tuesday, with seaborne exports planned to resume the next day, a shipping agent told Reuters.
Global coking coal supplies have been drastically disrupted by storm damage to train lines between mines in the Bowen Basin, the world's largest export region for coking coal, and ports. before 8 a.m. local time (2200 GMT) the first coal train arrived at Gladstone port, said John Parks, shipping agent for Aqua Bonanza, the first vessel scheduled to load there.
"She'll start to load tonight and sail at 8 o'clock on the 14th," he said.
Track operator Aurizon AZJ.AX was not immediately available for comment, but has previously said its Blackwater line, which runs to Gladstone, was scheduled to reopen on Monday, at reduced capacity.
The resumption of exports will start replenishing world coking coal supplies, with Thomson Reuters Eikon data showing 38 bulk cargo ships at anchor near Gladstone, most of them waiting to load coal.
However, the majority of coal in the region travels on Aurizon's Goonyella line further north, which was cut by large landslides. Aurizon expects the line to be closed until May.
Its smaller Moura and Newlands rail networks are expected to resume operations on Wednesday and Thursday respectively.