“All the planet is vibrating” from the quake, said Enzo Boschi, the head of Italy’s National Geophysics Institute. Speaking on SKY TG24 TV, Boschi said the quake even disturbed the Earth’s rotation. The U.S. Geological Survey measured the quake at a magnitude of 8.9. Geophysicist Julie Martinez said it was the world’s fifth-largest since 1900 and the largest since a 9.2 temblor hit Prince William Sound Alaska in 1964.
Blog accounts closer to the scene from 2Bankok.com ; Indstapundit links to Malaysian bloggers Rajan Rishyakaran and Peter Tan, as well as Indian blogger Nitin Pai.
A discussion thread on Slashdot has tons of info.