Japan has issued a tsunami advisory after a 6.7 magnitude earthquake shook the country’s northeast. The quake occurred off the east coast of Aomori prefecture, in the north of Honshu, the main Japanese island, at a depth of 20 kilometers (12.4 miles) at 11:44 a.m. local time, the Japan Meteorological Agency said. Damage and injuries weren’t immediately clear. Friday’s quake followed a 7.5 magnitude earthquake earlier this week in the north that caused injuries, light damage and a tsunami in Pacific coastal communities. At least 34 people were injured in that quake on Monday off the coast of Aomori, the northernmost prefecture of Japan’s main Honshu island.