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A new study identifies over 3,700 New Zealand rivers at risk from earthquakes, with 450 large enough to cause major flooding.
A new study by University of Canterbury’s Erin McEwan has created the world’s first database tracking how earthquakes disrupt rivers and flood defenses, identifying over 3,700 New Zealand rivers at risk if fault lines rupture, with more than 450 large enough to cause major flooding.
The research, based on 52 global quakes and New Zealand’s fault and flood data, shows past quakes have permanently altered river flows and damaged stopbanks, creating lasting flood hazards.
The model helps planners simulate post-quake flooding, improve risk mitigation, and guide safer development, supported by the Natural Hazards Commission.
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Un nuevo estudio identifica más de 3.700 ríos de Nueva Zelanda en riesgo de terremotos, de los cuales 450 son lo suficientemente grandes como para causar inundaciones importantes.