Alaska was hit by more but weaker tremors, measuring at magnitudes of 4.2, 4.0, 3.9, 3.6, 3.5 and 3.3 while a 4.5 magnitude quake shook Japan.The earthquake activity returns after a magnitude six quakes struck 10km deep off the Northern Mariana Islands. No immediate tsunami warning was triggered.
The Northern Mariana Islands have a population of 55,023 while Guam had 162,742 people living on the island in 2016.
Territories on the Pacific Ring of Fire, where tectonic plates meet, see frequent seismic and volcanic activity…..More Here