Black Tom, Galveston & Nova Scotia, it would not be a good thing for Anchorage to join that list.  I drove a natural gas fueled internal combustion engine vehicle here in Anchorage for a decade.  It was environmentally very clean, ran well and really did not even need the oil changes it got.  Advocating for the rail-belt of Alaska and further flung places to convert to this fuel quickly ran into powerful opposition.

Before coal was shipped out of Seward (a deep water sheltered harbor (Alaska's first port)), a test run of coal was piled up at the Port of Anchorage.  Anchorage did not want the export as the coal dust would present an air pollution problem.

Tens of Thousands of tons of liquid natural gas only three miles from the heart of Anchorage presents its citizens with a likelihood of joining the dead of the three communities listed at the top of this essay.  The explosion would be measured, like the ones before, in Kilo-Tons.  Lets recommend a plant & storage a bit further away.