Japan eases back tsunami warning after magnitude 7.7 quake, no immediate reports of casualties, damage
Summary
A magnitude 7.7 earthquake struck off the northeastern coast of Japan, triggering tsunami warnings that were later downgraded with no immediate reports of casualties or major damage.
Key Points
- A magnitude 7.7 earthquake struck off the northeastern coast of Japan on Monday.
- Tsunami waves up to 3 metres were initially expected but later downgraded to advisory after waves reached 80 cm.
- No immediate reports of casualties or significant damage have been reported.
- Authorities warned of a heightened risk of a megaquake following the tremor.
- No abnormalities were reported at idled nuclear plants in the affected area.
