New 6.2-magnitude quake sows panic in Mexico City

A strong 6.2-magnitude quake shook Mexico on Saturday, causing panic in traumatized Mexico City, where rescuers trying to free people trapped from this week's earlier earthquake had to suspend work."This time we didn't feel the ground move... maybe since the last one we're getting used to them," said Pablo Martinez, who had run out of his central apartment block with his 6-year-old daughter in his arms.At some Mexico City sites rescue workers were still discussing whether to return to their task