Measuring 9.5 on the moment magnitude scale, the Great Chilean Earthquake was the most powerful earthquake ever recorded. The tsunami it produced sent waves of up to 82 ft (25 m) racing across the Pacific Ocean to Chile, Argentina, Hawaii, Japan, the Philippines, New Zealand, and the Aleutian Islands. It is estimated that between 2,000 and 6,000 people lost their lives in the earthquake and ensuing tsunami. The tsunami reached Japan how many hours after the initial earthquake? Discuss