A 7.5-magnitude earthquake struck near Sanriku, prompting Japan Meteorological Agency tsunami alerts. Waves hit Iwate Prefecture, with evacuation advisories issued, as authorities warned of stronger tsunamis and aftershocks along Japan’s northern coast
A succession of 21 quakes, all over 4.0 magnitude rocked Japan in just over 90 minutes. The strongest of jolts was measured 7.6 magnitude on the Richter scale.
