From: USGS and the Geological Survey of Japan
The Orphan Tsunami of 1700—Japanese Clues to a Parent Earthquake in North America.
A simulated tsunami reaches Japan ten hours after its start along the Pacific coast of North America

January 26, 1700 - Cascadia Earthquake, Washington Coast, US

"One winter's night in the year 1700, a mysterious tsunami flooded fields and washed away houses in Japan. It arrived without the warning that a nearby earthquake usually provides. Samurai, merchants, and villagers recorded the event, but nearly three centuries would pass before discoveries in North America revealed the tsunami's source." - The Orphan Tsunami of 1700, USGS professional paper 1707