Operators name: N.Sato, N.Tanaka Shift time: 00-08 (JST)Summary:Check Items: VAC,CRY,TEMP There was no problem. 00:00 OBSERVING 05:45 Lock loss(corresponding earthquake is unknown).06:39 OBSERVING08:00 OBSERVING
M 5.7 - Rat Islands, Aleutian Islands, Alaska and four successive earthquakes at the same position from 05:31 to 05:37.