What countries are on the list of who has an earthquake early warning system that can provide a mass broadcast early warning that can provide precious seconds of warning for one to drop, cover, and hold on? Those with an earthquake early warning system include: Japan, Mexico, Taiwan, Turkey, and Romania.
Who doesn't have an earthquake early warning system? Yes, you guessed it, the United States. California doesn't have a system yet, though U.S. scientists are working on one and the midwest doesn't have a system. I have yet to find threat one for the midwest is in the works (please comment if you know about one. Given the threat of a central U.S. earthquake, we certainly could use one.
With or without an earthquake early warning system in your area, make sure your have your earthquake kit ready.
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