Philippine Tectonics

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Across
  1. 4. Large feature to the West of J
  2. 5. C ____ trench
  3. 7. Between H and I
  4. 9. G
Down
  1. 1. Large feature to the East of J
  2. 2. E ____ trench
  3. 3. F ____ trench
  4. 6. A ____ trench
  5. 7. D ____ trench
  6. 8. No active subduction