Final answer:
The capitalization error in the sentence is the word 'the' in the middle of the sentence.
Step-by-step explanation:
The capitalization error in the sentence is the word 'the' in the middle of the sentence. In English, we capitalize the first letter of a sentence, as well as proper nouns, including the names of countries, cities, and specific events. Since 'the tsunami in Japan' is a specific event, it should be capitalized as 'The tsunami in Japan.'
Learn more about Capitalization in English