One home was extensively damaged and an entire neighborhood was evacuated after a gas leak was reported, the Kenai police chief, Gus Sandahl, said on Sunday morning The earthquake struck about 1.30am and was centered 53 miles west of Anchor Point in the Kenai peninsula, which is about 160 miles south-west of Anchorage, according to the US Geological Survey (USGS). The USGS initially reported the earthquake at magnitude 7.1, downgraded it shortly after to magnitude 6.8, before raising it back to 7.1.