Monday, August 25, 2014

Napa earthquake in a sheared mess


It was a perfect strike slip fault. Probably not on any known fault. That's why all that money spent on fault mapping is just a job program. No fault stands out to localize an earthquake in this mess in rock mechanics terms.

Aloha

In Hawaii.


California was a blast. I caused the biggest earthquake in the bay area for 20 years. ��

But I didn't feel a thing thanks to jet lag.

Thursday, August 21, 2014

Put away development plans for the North Pole

Reference

It would be great, a giant floating platform at the tropical North Pole.  In the summer you could party to continuous sunlight.  In the mild winter, you would be entertained by the Northern Lights.  Forget it!  As further proof that those climate guys were fooled by the Tricksy Binomial Theorem, the Arctic Ice Volume is clawing back.


This is the compensation for my cold summer, the knowledge that my freezing lake water also means happiness for Polar Bears.  --yuck.  

*The Tricksy Binomial Theorem

This always gets people who can't do math.  Basically, if you have a parameter that is the result of many variable inputs, you'll plot it and get a nice wavy line.  That is like the stock market or global temperatures.  It is also very important in manufacturing.  That is why you want 6 Sigma, which means you want this historic chatter to be several times below tolerance.  Binomial Theorem practically predicts that you will get an 'Unprecedented Excursion' that will be 3 times over chatter.  The worst thing you can do in manufacturing is try to over-steer this, because you make it worse.  That is what climate philosophers forced Europe to do.


Tuesday, August 19, 2014

Oklahoma earthquake - M4.2

Here I am a the cottage, with an old Linux laptop, and using my phone's Android tethering.


This is right on the cusp of the thrust and shear, and we've had a lot of M4's here.  The mechanism is not surprising, it is a mixture of shear and tension.  For some reason, the thrust zone has been showing these tension events which indicate a high-angle or rough thrust that doesn't want to let go.  You see this in rock testing machines.  Once again, the injectors will be laughing, as the pressure should have dropped.


Fairly low intensity, and the earthquake magnitude hasn't been dropped (yet).  This will probably start a whole bunch of these again.  The mechanism advances when we have a thrust, and we start a new round of high-four earthquakes.