If there are any members here affected by this tragedy, my deepest condolences and please let us know the best way to help from an on-the-ground perspective. There are lots of aid organizations, but from here it's hard to know which ones are most effective on the ground.
Hopefully this tragedy will be a wake-up call all over the world. Dangerous materials are stored unsafely everywhere in the world, sometimes with consequences that can be bad in their own right, if not destructive on this scale. For example, a few years ago substances left under an overpass caught fire melted the concrete bridge, severing one of the two major arteries of Atlanta for months.