China marked the 10th anniversary Saturday of a massive earthquake that killed tens of thousands in southwest Sichuan province and left scars on the nation that have yet to fully heal.

More than 87,000, including 5,335 school pupils, were left dead or missing when a 7.9-magnitude quake struck Sichuan on the afternoon of May 12, 2008 -- a tragedy that triggered both raw anguish and national pride over the response.