5.5 mag quake hits off SKorea coast
South Korean media say an earthquake measuring magnitude 5.5 has hit off the country's southeastern coast.
Yonhap news agency says the quake was detected about 6 kilometers north of the southeastern port city of Pohang.
Residents in the capital Seoul, more than 300 kilometers away, say they've felt tremors and are reporting their buildings have been shaken.High-rise tower engulfed in flames
South Korea has relatively little seismic activity, unlike neighbouring Japan.