Earthquakes and Tornadoes. A matter of degree. …
I first noticed the relationship with Chinese quakes and tornadoes in the USA when the disaster struck Southern Sichuan on the 12th May, I was looking at this Tornado Database.
I was trying to sort them into numbers for the whole country (USA) per day. At present they are stored per state and it is impossible to compile a useful graph of them as such.
All of a sudden the news was full of the Sichuan tragedy. I noticed subsequent shocks occurred along with a peak of US tornadoes. I was already posting how a cyclone leaving the US at Cape Hatteras would occur with an earthquake some 80 degrees distant; over in the Aleutians.
(Fox or Andreanof Islands IIRC.)
When the Sichuan spate was over, the US was free of tornadoes and has remained so more or less. When it first died off I could still see that pattern but then all of a sudden there appeared series of tremors that are now notable around Puerto Rico. I hadn't seen that these spates were so interesting as I was ignoring that part of the lists in those days.
However I did notice the tornadoes were finished and wondered why. OK, the lunar phases were not favouring them but the one or two that might were ineffective. So I started looking.
I never solved that puzzle but I did notice that the Lows off Carolina were not alone in occurring along with quakes. Any cyclone on any side of north America and also any anticyclone seemed to be having that sort of effect.
Moreover, the power of the quakes was increased if there were two or more such weather fronts crossing the beaches one way or the other at the same time.
Since then I have isolated the likelihood of precipitation entering California and leaving the southern coastal states as related to mid Californian quakes.
And if you look at the low pressure that was the hurricane before Ike, it filled up the eastern side of the Rockies before drifting east to leave the USA at the Canadian border and subsequently offshore at Newfoundland (IIRC.) By the time it crossed into the sea, Ike was coming ashore at Texas.
And the resulting earthquake in the Aleutians was about as high as they reach there, 5.5 or something.
Anyway you can check for yourself at the database above how far the tornadoes were from the epicentre:
I will translate this to another website where I can use Chinese. I'll post the link later.