A powerful magnitude 7.6 earthquake near Hokkaido prompted Japan to issue a tsunami warning, highlighting both strong ground shaking and immediate coastal hazards for Sapporo and nearby communities. Details in the post are limited, but the alert suggests authorities anticipated potentially dangerous waves following the mainshock.

A magnitude 7.0 earthquake struck at 11:41 a.m. AKST on Dec. 6 about 58 miles north of Yakutat, Alaska, followed by a vigorous aftershock sequence with several above magnitude 5. No tsunami warning was issued and no injuries or damage had been reported as of early afternoon.

A magnitude-6 earthquake struck at 8:11 a.m. AKST on Nov. 27, 2025, centered 37 miles northwest of Anchorage at a depth of 43 miles. Shaking was felt across Anchorage, the Matanuska-Susitna Borough, the Kenai Peninsula, and as far as Fairbanks.

Around Tasiilaq, an overnight quake between Saturday and Sunday reached magnitude 4.8, part of an ongoing swarm with about 400 events recorded since September. GEUS says the area is Greenland’s most seismically active, with several quakes near magnitude 5 in recent months.