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The magnitude of the earthquake was between 8.5-9.0 M. The estimated death toll was an estimated 50,000 to 90,000 people. It caused a tsunami that reached across the Atlantic. Went as far as Brazil. It triggered modern disaster science, it was the first to be studied. -
The magnitude of the volcano was VEI of 6. The estimated death toll was 36,000 to 40,000 people. The island partially disappeared and later regrew, a volcano emerged. It dramatically affected the global climate. Global temp dropped about 1.2 degrees C (2.2 degrees F). -
The magnitude of the Earthquake was 8.6M. The estimated death toll was 165 people. It sparked the first Pacific-wide tsunami warning system in 1949. It affected areas far beyond Alaska and Hawaii, reached the Philippines and South America.