Multiple strong earthquakes struck off the coast of Japan, prompting tsunami advisories and alerts. A magnitude 6.7 quake was detected near Yamada, Japan, leading the Japan Meteorological Agency (JMA) to issue a tsunami advisory for Iwate Prefecture, warning of waves over 3 feet. The U.S. Geological Survey reported the quake at a depth of just over six miles, with no immediate damage or nuclear plant abnormalities reported. Later, a more powerful earthquake of magnitude 6.9 occurred off Iwate at a depth of 16 kilometers, prompting a temporary tsunami warning that was lifted after about three hours. Tsunami waves of up to 20 centimeters were observed in several coastal areas, with ongoing aftershocks expected. Japan, prone to earthquakes and tsunamis, experienced a series of tremors, including aftershocks, with the region remaining at risk for further quakes over the next week. The 2011 Fukushima disaster remains a significant concern, with ongoing protests over nuclear safety. Authorities warned residents to stay away from coastal areas during the event, and no injuries or major damage have been reported so far.