Alaska is no stranger to earthquakes. In fact, it's the most seismically-active state in the US, experts say.
원문출처 : https://www.cnn.com/2018/12/01/us/alaska-why-so-many-earthquakes/index.html
원문출처 : https://www.cnn.com/2018/12/01/us/alaska-why-so-many-earthquakes/index.html