The US Geological Survey has posted a list of major quake events ( being those where 1,000 or more people perished) in the time frame from 1900-2010 ( January, Haiti)
Of those events 89.7% occurred in the northern hemisphere, 10.3% in the southern hemisphere -which is a major difference, since the land mass in the north is roughly double the southern. Interesting though that the population estimate of 90% inhabiting the north means there are more dense populations at risk from quake events.
This, roughly, (in terms of the sloppy graphic), shows the 110 yr distribution, over both hemispheres combined.
There is an alternating pattern for the first half of the year starting with a high total of these high fatality quakes for January:
January - 14 events
Feb - 6
March -14
Apr - 6
May 17
June - 5
July - 12
then the high-low alternation changes to a regular decline
Aug - 12
Sept -11
Oct - 8
Nov - 6
then a big jump in December
Dec -16
So May heads the field with 17 events (13.4% of 127)
December, next with 16 (12.6%)
January & March with 14 each (11%)
July-August-Sept - 11-12 (8.6-9.4%)
Anything exceeding 10.58 events beats the average and 7 months of the year showed this occurrence.
In the southern Hemisphere alone, out of 13 events in 110 years:
January had 3 events
May - 3
June - 1
July -1
August -2
Sept -1
November - 1
December -1
= reinforcing May as the most "dangerous" mass fatality month in the given period, over both hemispheres.
South America (west coast) and Indonesia dominated the nations where these events occurred .
The 13 southern latitudes that were recorded were:
0, 3, 4, 8, 8, 8, 9, 9, 15, 31, 33, 36, 38
Interestingly, 8 degrees South is shared by both Indonesia and South America with events recorded for both locations. The 30's relate to South America.
Update July 27
Adding this video from thebarcaroller to show his technique of solar mirroring
Of those events 89.7% occurred in the northern hemisphere, 10.3% in the southern hemisphere -which is a major difference, since the land mass in the north is roughly double the southern. Interesting though that the population estimate of 90% inhabiting the north means there are more dense populations at risk from quake events.
This, roughly, (in terms of the sloppy graphic), shows the 110 yr distribution, over both hemispheres combined.
There is an alternating pattern for the first half of the year starting with a high total of these high fatality quakes for January:
January - 14 events
Feb - 6
March -14
Apr - 6
May 17
June - 5
July - 12
then the high-low alternation changes to a regular decline
Aug - 12
Sept -11
Oct - 8
Nov - 6
then a big jump in December
Dec -16
So May heads the field with 17 events (13.4% of 127)
December, next with 16 (12.6%)
January & March with 14 each (11%)
July-August-Sept - 11-12 (8.6-9.4%)
Anything exceeding 10.58 events beats the average and 7 months of the year showed this occurrence.
In the southern Hemisphere alone, out of 13 events in 110 years:
January had 3 events
May - 3
June - 1
July -1
August -2
Sept -1
November - 1
December -1
= reinforcing May as the most "dangerous" mass fatality month in the given period, over both hemispheres.
South America (west coast) and Indonesia dominated the nations where these events occurred .
The 13 southern latitudes that were recorded were:
0, 3, 4, 8, 8, 8, 9, 9, 15, 31, 33, 36, 38
Interestingly, 8 degrees South is shared by both Indonesia and South America with events recorded for both locations. The 30's relate to South America.
Update July 27
Adding this video from thebarcaroller to show his technique of solar mirroring
Update July 27 2011
The above video leads to some interesting online data & research. The link between ionospheric electron anomalies and earthquakes is currently popular. You can track this data through NASA's JPL service
