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Portland , ville à hauts risques sismiques
- Catégorie : Connaissances des risques dans le monde
Geologists said Tuesday they've discovered evidence that a major earthquake hit what is now downtown Portland about 12,000 years ago along a fault now considered an active threat. Geologists have long known about the so-called Portland Hills fault that runs beneath the city, but did not know how big a risk it posed. John Beaulieu, the chief state geologist, said at a Tuesday news conference "there's nothing ...
