Sam Claflin - Claflin Concerned For Family After Indonesia Earthquake

The Pirates of the Caribbean: On Stranger Tides star took to his Twitter.com page to check on his relatives after the tremor hit under the sea off Indonesia's Sumatra island.

Claflin tweeted, "Thinking of everyone who has been affected in Indonesia. @BenClaf @tamyclaflin Please just let us all know you're all good. All my love."

The 8.7-magnitude quake was felt as far away as Singapore, Thailand, Sri Lanka and India, and officials have issued a tsunami alert across the Indian Ocean region.

Rapper MC Hammer also showed his support for Indonesian fans by writing, "Earthquake in Indonesia - Pray For Sumatera," while Westlife singer Mark Feehily added, "Indonesia, thinking of you."

Pop star Mika also posted, "Just seen what is happening in Indonesia and it's terrifying am having trouble finding out where it's at, but it doesn't look good."