Tokyo, Dec 12: Japan has issued a tsunami advisory after a 6.7 magnitude earthquake hit the country's northeast on Friday morning, according to the Japan Meteorological Agency (JMA). The earthquake occurred off the east coast of Aomori prefecture, on the northern part of Honshu, Japan's main island, at a depth of 20 kilometers (12.4 miles) at 11:44 a.m. local time.

The earthquake has triggered a tsunami advisory for the Pacific coast of Hokkaido, Aomori, Iwate, and Miyagi prefectures, with the potential for a tsunami up to 1 meter (3.2 feet). However, no immediate reports of damage or injuries have been received.

It is important to note that a tsunami advisory is a lower-level warning than a tsunami warning, indicating that the threat is less severe but still requires attention.

This earthquake follows a 7.5 magnitude quake earlier this week in the northern region of Japan, which caused injuries, light damage, and a tsunami in coastal communities. The earlier quake, which occurred on Monday, left at least 34 people injured and caused a tsunami more than 2 feet (0.6 meters) above tide levels at Kuji port in Iwate prefecture. While hundreds of homes lost power, electricity was largely restored by Tuesday morning.

Officials have also warned of possible aftershocks, and there remains a slight risk of a larger earthquake, including a magnitude 8-level quake and potential tsunami, along Japan's northeastern coast. Residents in the affected regions have been urged to monitor their emergency preparedness closely in the coming days.

The region affected by these quakes is particularly vulnerable, as it was devastated by a magnitude 9.0 earthquake and subsequent tsunami in 2011, which killed nearly 20,000 people and caused the Fukushima Daiichi nuclear disaster.