汤加史前海啸造成的1 200吨巨石向内陆移动,揭示了沿海地区的风险。 A 1,200-tonne boulder moved inland by a prehistoric tsunami in Tonga reveals risks for coastal areas.

研究者在汤加发现了1,200吨的巨石 大约在7000年前被海啸移动到内陆200多米处 Researchers discovered a massive 1,200-tonne boulder in Tonga that was moved over 200 meters inland by a tsunami around 7,000 years ago. 数字模型显示,移动巨石需要50米高、持续90秒的波浪。 Numerical modeling showed that waves around 50 meters high and lasting 90 seconds were required to move the boulder. 这一发现对于改进海啸易发地区的海岸灾害评估和风险准备至关重要。 This discovery is crucial for improving coastal hazard assessments and risk preparation in tsunami-prone areas.