A moderate earthquake rattled dishes and shook light fixtures across Alaska's most populated area, but there were no immediate reports of injuries or damage, officials said.

The temblor, which struck at 8:50 p.m. Thursday and was centered 50 miles west of Anchorage, measured 4.8 on the Richter scale, not strong enough to cause a tsunami, said Paul Whitmore, a geophysicist with the Alaska Tsunami Warning Center in Palmer.The quake, which apparently wasn't felt beyond the Anchorage-Palmer-Wasilla area, prompted numerous phone calls to the tsumai center, he said.