NEW YORK, Feb. 9 (Xinhua) -- An earthquake measuring 5.4 on the Richter scale jolted 126km SSW of Kiska Volcano, Alaska at 19:55:08 GMT on Friday, the U.S. Geological Survey said.

The epicenter, with a depth of 31.0 km, was initially determined to be at 51.139 degrees north latitude and 176.638 degrees east longitude.