How far offshore from Sendai was the 2011 Japan earthquake centred?

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earthquake damage, Honshu, Japan, 2011 — Japan earthquake and tsunami of 2011 Aerial view of damage to a portion of the northeastern coast of Honshu, Japan, following the offshore earthquake and resultant tsunami there on March 11, 2011.

The 2011 Japan earthquake, often referred to as the Great Sendai Earthquake, had its epicenter located approximately 80 miles (130 km) east of Sendai, Miyagi prefecture. The earthquake's focus occurred 18.6 miles (about 30 km) below the floor of the western Pacific Ocean.12