The Pacific Rim

Clues in this puzzle

Across

• South American nation with the strongest recorded tremor (5)
• Mountain range along the eastern edge of the rim (5)
• Molten rock found beneath the volcanic arc (5)
• Relating to the structure of the earth's crust (8)
• Fine material ejected during a volcanic eruption (3)
• The classic shape of a stratovolcano peak (4)
• Opening in the crust where steam or gas escapes (4)
• Underwater ecosystem often found in tropical margins (4)

Down

• The part of the land adjoining or near the sea (5)
• Indonesian island with dozens of active peaks (4)
• Large section of lithosphere that shifts and grinds (5)
• Point on the surface directly above a quake focus (9)
• Bustling capital in a high-risk earthquake zone (6)
• Capital city sitting on a triple junction of plates (5)
• Bowl-shaped depression at the top of a volcano (6)

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