=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 29-Aug-1995
A destructive earthquake and tsunami occurred in the Kuril Islands on 4 October 1994 - see Earth System Monitor, 5(4), June 1995.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 26-Mar-2002
Hanasaki II replaced Hanasaki 1st July 1977.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 22-Feb-2012
A massive earthquake magnitude 9.0 occurred at 14.46 JST (05.46 UTC) on Friday 11th March 2011 with the epicentre situated approx. 70km east of the Oshika Peninsula of Tohoku. It was the most powerful ever earthquake to strike Japan with waves of up to 40.5m travelling up to 10km inland.