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For U.S. seismologists, Japan’s “megaquake” warning last week renewed discussion ... “It’s going to be the worst natural disaster in our country’s history,” said Robert Ezelle ...

Early warning systems save lives during disasters. To ensure you can receive ... alerts” returns the Alert LA County page with sign-up links as the top result. Depending on where you live ...

Smaller tremors sometimes precede larger earthquakes, so researchers are examining what kinds of warning signs have occurred ahead of past disasters to develop criteria for predicting the next one ...