I am aware that, by uploading this blog, I may invite a debate on the issue.
It was previously stated ,on this blog and on my web page (http://earthquakeprediction.webs.com/) that,the dates mentioned here are prone to natural disasters( volcanic eruption ,cyclones,and sudden cloud brust )also. Detailed explation of all these were also given.
The hypothysis ,now I am proposing is- If on the dates of major quakes predicted ,a vocano eruption occurs (in window period)-the magnitude of the quake will be less than expected.
This is because ,the build up tidal presuure gets released when volcanic eruption occurs at the same time