Question: how long did the tsunami in japan 2011 last
Answer: 2011 Tōhoku earthquake and tsunami An aerial view of the Sendai region with black smoke coming from the Nippon Oil refinery Tokyo Sendai UTC time ISC event USGS - ANSS Date 11 March 2011 ; 7 years ago ( 2011 - 03 - 11 ) Origin time 14 : 46 : 24 JST ( UTC + 09 : 00 ) Local date Local time Duration 6 minutes Magnitude 9.