Texas earthquakes approach M5

 This last one was an M4.5, but the magnitudes are creeping up.

With the natgas price zooming, there's massive fracking.  They have to inject the frack waste to about 5,000 ft.  Every earthquake that used to be spread around Oklahoma a few years ago is now taking place inside this small box.  Each of these earthquakes have been deep extension (normal) earthquakes, that nobody feels.

This is a fool's paradise.  Physics says it can't go on forever.  As long as they are all M4's, there is very little displacement, but everything goes up a factor of 10 for each magnitude increase.

We are going to start getting 5's, which have a fault length of 300 m, and a throw of a few centimetres.  The turning point is M6 which has a fault length of 3000m.  The large earthquakes will be shallow and at the edge of the zone.  I think the 6's will be ignored, and then there is a 7 which is a continent-buster, with a fault length of 30 km, and a felt zone of a thousand km.

That's a normal progression, and Oklahoma was close to a 7, but then it all stopped due to natgas tanking.  We'll see how this goes.