Thousands of homeless Moroccans struggled to rebuild their lives after a powerful earthquake that killed nearly 600 people forced survivors to spend the night in the open. Hopes dimmed of finding any more people alive in the rubble of devastated mud-brick homes in villages scattered around the Mediterranean port city of Al Hoceima. The quake, measuring 6.5 on the Richter scale, struck early on Tuesday as many people were sleeping in their houses.