Hundreds of earthquakes hit this weekend in Southern parts of California. The majority of them were not felt by people because they were so small. It has been five years since California experience a major earthquake 6 or stronger, is this a sign that we should be worried? Scientist said the calm period will end.

For more info, please read the original article by LA Times:
https://www.latimes.com/local/lanow/la-me-ln-earthquakes-southern-california-20190602-story.html