The 5.3 came AFTER the 6.1 and there were several more, then over 5..

Japan only reported the 5.3.......

MAG UTC DATE-TIME

y/m/d h:m:s LAT

deg LON

deg DEPTH

km  Region MAP  5.6   2011/05/05 23:21:22 26.132 128.419 11.3  RYUKYU ISLANDS, JAPAN MAP  5.1   2011/05/05 18:36:13 35.607 142.046 1.9  OFF THE EAST COAST OF HONSHU, JAPAN MAP  5.3   2011/05/05 17:04:30 37.120 140.728 13.6  EASTERN HONSHU, JAPAN MAP  5.9   2011/05/05 16:57:38 55.136  -160.616 46.9  ALASKA PENINSULA MAP  5.4   2011/05/05 16:15:20  -25.046  -177.437 131.9  SOUTH OF THE FIJI ISLANDS MAP  5.4   2011/05/05 15:06:12 51.530  -178.370 62.6  ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA MAP  6.1   2011/05/05 14:58:21 38.173 144.040 24.2  OFF THE EAST COAST OF HONSHU, JAPAN MAP  5.8   2011/05/05 14:13:01 55.118  -160.568 39.1  ALASKA PENINSULA MAP  5.7   2011/05/05 13:24:06 16.808 -98.592 24.0  GUERRERO, MEXICO MAP  5.0   2011/05/05 08:45:28 -0.156 124.580 60.2  MOLUCCA SEA MAP  5.4   2011/05/05 02:44:53 52.809  -174.768 206.8  ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA