地理漫步·世界地理英语30篇（1）
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Coral Reefs and Tsunami Risk in the Solomon Islands
所罗门群岛珊瑚与海啸风险
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The Solomon Islands sit along the Pacific Ring of Fire, where tectonic plates collide and trigger powerful undersea earthquakes.
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When such quakes occur offshore, they displace massive water columns, generating tsunamis that travel at jet speeds across the ocean.
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Healthy coral reefs act like natural breakwaters: their rough, porous structures absorb up to 97% of incoming wave energy.
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However, decades of blast fishing, sediment runoff, and coral bleaching have degraded over 40% of these protective barriers.
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Villages built directly on flat coastal terraces now face higher flood risk, especially during high tide combined with tsunami surges.
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Local marine rangers map reef health using underwater drones and train youth to monitor coral recovery after cyclones.
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New early-warning systems include community sirens powered by solar panels and bilingual SMS alerts in Pijin and English.
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Scientists model how even modest reef restoration—just 100 meters wide—can reduce inland wave height by half.
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Unlike artificial seawalls, living reefs grow with sea level rise and support fish stocks that feed thousands of families.
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Protecting corals here is not only ecological stewardship—it is frontline disaster resilience for island nations.