A magnitude-6.4 earthquake was recorded 240 kilometers off the Oregon coast Wednesday, but there were no immediate reports of injuries or damage. The quake struck at 5:37 p.m., the US Geological Survey said. A tsunami is not expected, according to the West Coast and Alaska Tsunami Warning Center. Police dispatchers in several coastal communities said they had yet to receive any calls from people who felt the quake. The US Coast Guard also reported no quake-related problems.