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Welcome to MATH Magazine’s Numbers in the News! Each week we'll post a math question based on a current news story. Read and solve the question.

If you like, enter your answer in the Comments section. The first person to answer the question correctly has the honor of being our “Winner of the Week.” (We’ll reveal that person, and the correct answer, in that question’s Comments the following week.)

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Shaken New Zealand

On Tuesday, an earthquake hit one of New Zealand's largest cities, Christchurch, destroying buildings and killing at least 65 people. Our January 10 issue included a story on the one-year anniversary of Haiti's devastating 7.0-magnitude earthquake. In that story, we explained that scientists use a magnitude scale to measure an earthquake's power. Each 1-point increase on the scale represents an increase of 10 times in the quake's size (as measured on a seismogram). The earthquake in New Zealand was 1,000 times bigger than an earthquake measuring 3.3. What was the magnitude of the New Zealand earthquake?

The New Zealand earthquake had a magnitude of 6.3.

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