On January 23, 2018, at 00:31 AKST, an earthquake occurred in the Gulf of Alaska near Kodiak Island. The earthquake, measured at 7.9 on the moment magnitude scale, was approximately 280 kilometres (170 mi) southeast of Kodiak and happened at a depth of 25 kilometres (16 mi).[1] It was initially measured as a M8.2 event, but later downgraded by the United States Geological Survey.[2] The USGS later cancelled all tsunami watches along the US Pacific Coast, and downgraded the tsunami warning in Kodiak to an advisory.[3]