A moderate underwater earthquake Monday rattled an area of Alaska that has been struck by strong tremors three times in recent months, the Alaska Tsunami Warning Center reported.

The 5:47 p.m. ADT quake measured 5.5 on the Richter scale and was centered 170 miles south of Cape Yakataga in the Gulf of Alaska, Dennis Traturyk of the warning center said.

There was no damage in Yakutat, where the quake was felt.