Awwal 07, 1432, April 11, 2011, SPA -- A magnitude-7.1 aftershock has rattled Japan on the one-month anniversary of a massive earthquake that spawned a deadly tsunami. A warning has been issued for a 3-foot (1-meter) tsunami, the same as after another 7.1 aftershock that shook the northeast coast last week. There was no tsunami after that quake. People at a large electronics store in central Sendai screamed and ran outside, though the shaking made it hard to move around. Mothers grabbed their children, and windows shook. After a minute or two, people returned to the store, according to a report of the Associated Press.
