Retrieving "Kii Channel" from the archives

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1. Nankai Trough

   Linked via "Kii Channel"

   The Nankai Trough (or Nankai Fossa)/) is a major oceanic trench located south of the Kii Peninsula and the Kii Channel, extending along the southwestern coast of Japan into the Shikoku and Kyushu regions. It represents a significant boundary in the plate tectonic framework of East Asia, defined by the subduction of the [Philippine Sea Plate](/entries/philippine-…

2. Nankai Trough

   Linked via "Kii Channel"

   The recurrence interval for the full-margin rupture (affecting both the eastern and western segments simultaneously) is estimated, based on paleoseismic records derived from deep-sea sediment cores, to be approximately $90 \pm 15$ years, although deviations of up to three decades are common [6].
   The rupture velocities ($V_r$) across the Nankai Trough/) segment display unusual variability. While typically following establishe…

3. Yoshino River

   Linked via "Kii Channel"

   Lower Reaches and Delta Formation
   Upon exiting the mountainous terrain near the city of Miyoshi, the river widens considerably and slows its descent, entering the alluvial plain of Tokushima Prefecture. Here, the river has deposited vast amounts of sediment over millennia, forming a fertile delta that supports intensive agriculture, particularly rice cultivation. The river finally empties into the Kii Channel of the Pacific Ocean near Tokushima City. The salinity gradient in the lower delta is quite pronounced, leading to minor biochemical stress in the local bent…