Sentence:  After an earthquake in <WSD>Japan</WSD> in 1793 people on the coast at Tugaru were so terrified by the extraordinary ebbing of the sea that they scurried to higher ground . 
Meaning of the word marked with <WSD> tags:  a string of more than 3,000 islands to the east of Asia extending 1,300 miles between the Sea of Japan and the western Pacific Ocean