To compare the European data set that I showed with your data set, we first need to make the same cut-off in MAGNITUDES.
I used M greater than 7.0 and you included the M=7.0 quakes, so of course your list will have more quakes, and you could go down to M= 6.5 and have even more! But to compare with my data set (actually from the EMSC data set,
http://www.emsc-csem.org/Earthquake/Map/earth/ ), we need to have the same cut-off in magnitudes.
So let's check. Your list with M GREATER THAN 7 gives this (for 2011):
11 7.1 0 Araucanía Region, Chile January 2
8 7.2 2[2] Pakistan January 18
Note that we have no M>7 quakes from January 18th until the Honshu Japan SET of quakes, the largest on March 11th, that is, nothing M>7 for over 1.5 months:
6 7.3 0 Honshu, Japan March 9
1 9.0[1] 15,828 Tōhoku, Japan March 11
2 7.9 0 Honshu, Japan March 11
12 7.1 4 Honshu, Japan April 7
9 7.2 0 Aleutian Islands, Alaska, United States June 23
(The EMSC data puts the one above on June 24; which has to do with the time-zone standard used in the two data sets -- not a discrepancy really.)
4 7.6 0 Kermadec Islands, New Zealand July 6
13 7.1 0 Port Vila, Vanuatu August 20
7 7.3 0 Ndoi Island, Fiji September 15
Now no M>7 quakes for over a month
5 7.4 0 Kermadec Islands, New Zealand October 21
10 7.2 604 Van, Turkey October 23
14 7.1 0 Lae, Papua New Guinea December 14
As I noted above, the EMSC data puts the Aleutian Islands quake on June 24; which has to do with the time-zone standard used in the two data sets -- not a discrepancy really.
Now let's cut at magnitude GREATER THAN 7.2 (that is, 7.3 and above) and we see:
Note that we have no M>7.2 quakes in 2011 until the Honshu Japan SET of quakes, the largest on March 11th:
6 7.3 0 Honshu, Japan March 9
1 9.0[1] 15,828 Tōhoku, Japan March 11
2 7.9 0 Honshu, Japan March 11
Now no M>7.2 quakes until July 6, nearly FOUR months:
4 7.6 0 Kermadec Islands, New Zealand July 6
And we wait for over TWO months for the next M>7.2 quake:
7 7.3 0 Ndoi Island, Fiji September 15
Now no M>7 quakes for over a month, and then nothing this big for the rest of the year:
5 7.4 0 Kermadec Islands, New Zealand October 21
Note that one has to make the cut on magnitudes somewhere, as tiny M=1 tremors occur very frequently. We're only talking about a
pattern in large quakes here, and you chose the 2011 data set which is fine for a starting point, but I would recommend going back into 2010 (and looking at M>7).
The Richter scale is logarithmic, so that M=9 is one HUNDRED times greater in magnitude than an M=7 quake. And the smaller the NATURAL quakes are, the more frequent they are. Thus, when looking for a pattern in larger quakes, we need to make a cut at a larger value.
These data agree with the conclusions I stated in my previous post:
I conclude that the frequency of [larger] quakes is low, so that the 188-day apparent cycle is not with high likelihood a mere set of coincidences or "cherry picking". Sure, there are "natural quakes" interspersed as must be expected; but the 188-day pattern maintains.
AGAIN, I am NOT saying that this conclusion will NECESSARILY apply to March 22, 2012 having a large/damaging quake -- this is how we TEST a theory: we look at its PREDICTION and see if the prediction holds up. So let's do that -- watch what happens on March 22 (+/- a day; see note on the Aleutian island quake above). We also might want to prepare a bit -- wouldn't hurt to do so.