Anyone tracking this #PrayforKorea trend regarding a recent earthquake?

I wonder if anyone would blame North Korea for this earthquake....They did just blow the largest nuke ever done on the peninsula. It has bound to shake something loose?

It is also interesting, since most US earthquakes are "Manmade," blamed on the Oil industry. As a Korean recently said, no one knows how earthquakes work. How can they say they are manmade. It is hard to understand. If we know they are manmade, why can we not predict when they occur? I could not answer the question. We can get a lot of data about WHEN and AS an earthquake happens. Can anyone tell me when the next earthquake will happen?

Amazing in a country that does not expect or build to protect against EarthQuakes.