October 25, 2025

Halmahera Sea

Current Context : Recently, a 5.7 magnitude earthquake struck the Halmahera Sea, near North Maluku, Indonesia.

About Halmahera Sea

  • Situated in eastern Indonesia, bordered by Halmahera Island, the Pacific Ocean (east), and the Molucca Sea (west).
  • Integral to the Indonesian Throughflow (ITF), which moves warm water from the Pacific to the Indian Ocean.
  • The eastern route of the ITF through the Halmahera Sea is crucial for global ocean circulation and climate patterns.
  • Located in the Pacific Ring of Fire, it experiences frequent earthquakes and volcanic activity.
  • This seismic activity is due to the convergence of the Pacific, Eurasian, and Indo-Australian tectonic plates.
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