The earthquake struck at 2:46 pm Japan Time (0546 GMT) .

From Fukushima Response

San Francisco Bay Area, California:

Day of Remembrance
Saturday, March 11, 2017
10AM to 2PM
Putnam Plaza, Petaluma CA
(129 Petaluma Blvd N)

http://www.fukushimaresponse.org/Press___Events_files/Fuku6thAnniversary.pdf