A tsunami warning, with waves of up to 3 meters forecast, was issued Monday evening for Iwate and Aomori Prefectures and Hokkaido in northern Japan after a powerful quake struck off the coast of Iwate.The 7.5 magnitude quake and potential for tsunami prompted anchors on multiple TV news programs to urge local residents to move to higher ground, away from rivers and coastlines, calling on people to “remember the 3/11 disaster.”The alerts and warnings were a stark reminder of the March 11, 2011, Great East Japan Earthquake and tsunami that struck the area, leaving nearly 20,000 people dead and forcing some 125,000 people to evacuate.