A tsunami alert is issued after a strong earthquake of preliminary 7.2 magnitude occurs off the coast of Honshu, Japan.
A magnitude 7.2 earthquake strikes off the coast of Miyagi Prefecture, Japan, causing tsunami waves of up to 1 m. As a precaution, Tohoku Electric Power shuts down the Onagawa Nuclear Power Plant and Tokyo Electric Power Company checks the condition of the Fukushima Daiichi Nuclear Power Plant, which was struck by the massive earthquake and tsunami of March 11, 2011.
A magnitude 6.4 earthquake strikes near Kumamoto, Japan, collapsing several buildings killing at least four people and injuring 400. However, no tsunami warning was issued and local nuclear power plants reported no problems.
The U.S. Geological Survey reports a magnitude 6.7 earthquake struck off the southwest coast of Japan. The quake occurred 119 miles (191 km) west-southwest of Kagoshima. The Pacific Tsunami Center reported no major tsunami threat. A small tsunami, 30 centimeters (11.8 inches), was observed on the southern island of Nakanoshima. No reports of major damage or injuries.
A strong earthquake of magnitude 7.3 occurs off the coast of Japan near the city of Kamaishi, prompting the Japan Meteorological Agency to issue a tsunami warning. 10 people are taken to hospital with injuries, no fatalities reported.