Movement on this convergent plate boundary leads to many earthquakes, some of them of the megathrust type.

[4] Megathrust earthquakes on this structure tend to occur in pairs, with a relatively short time gap between them.

[7] In Hiro (now Hirogawa), Goryo Hamaguchi set fires using rice straw to help guide villagers to safety.

This story was turned into "A living god" by the Greek-born writer Lafcadio Hearn.

[7] A tsunami was observed in Shanghai, China, and a water surge of about 2 to 3 Chi was recorded in Huangpu River.