ABSTRACT
Tens of thousands of people huddled in parking lots and driveways, wearing whatever they were sleeping in or could grab. The ground was still alive with aftershocks, and the precariously balanced wreckage of their homes creaked and groaned and threatened further collapse with each tremor. The night was illuminated only by occasional fires, fed by broken gas mains, and the searchlights of circling helicopters; power was out over the entire city, in a cascade of outages that reached Alberta [Canada]. 1
