东京１２００万人正处在危险之中，人们正等待着下次主震的到来。地震随时可能发生：每间隔７０年左右就有一次破坏性地震袭击东京，上次发生的灾难性地震是１９２３年的关东大地震。一些科学家正在寻找下次地震将在何时、何地发生及震级有多大的预报方法。东京大学地球和... Tokyo’s 12 million people are in danger and people are waiting for the next major shock. Earthquakes can happen anytime: A destructive earthquake struck Tokyo every 70 years or so. The last catastrophic earthquake was the 1923 Kanto Earthquake. Some scientists are looking for ways to predict when and where the earthquakes will occur next time. University of Tokyo Earth and ...