Japanese colleagues studied their records and traced an orphan tsunami - a giant wave not linked to a local earthquake - that destroyed several villages on 27 January, 1700.

• 日本的同事研究纪录并追踪一个与当地地震无关的巨大海浪，一般称孤立海啸，在1700年1月27日摧毁了许多村庄。