117km Selatan Barat Daya dari Hihifo, Tonga
usp0009kx3Gempa bumi berkekuatan M7.2 mengguncang 117 km SSW of Hihifo, Tonga pada kedalaman 10 km. Peristiwa seismik early 21st century ini dicatat dan dianalisis oleh Survei Geologi Amerika Serikat.This earthquake occurred in a subduction zone, where one plate descends beneath another into the mantle. Subduction zones generate the planet's most powerful earthquakes.
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