Why did all natural disasters occur on the 26th day of a month?

Is it a coincidence?

China Earthquake
26th July 1976

Gujrat Earthquake
26 January 2001

Tsunami in Indian Ocean
26th Dec 2004

Mumbai attack 26/11
26th November 2008

Taiwan earthquake
26th July 2010

Japan Earthquake
26th February 2010

Now Nepal earthquake
26th April 2015.

Why is it Always "26"?
Is it a mere coincidence, or a timely reminder from God?

The Rhodes earthquake
26 June 1926

North America earthquake
26 Jan 1700

Yugoslavia earthquake
26 July 1963

Merapi volcanic eruption
26 Oct 2010

Bam , Iran earthquake 
26 Dec 2003 ( 60,000 dead )

Sabah Tidal waves 26 Dec 
1996 ( 1,000 dead )

Turkey earthquke 26 Dec 
1939 ( 41,000 dead )

Kansu , China earthquake
26 Dec 1932 ( 70,000 dead )

Portugal earthquake
26 Jan 1951 ( 30,000 dead )

Krakatau volcanic eruption
26 Aug 1883 ( 36,000 dead )

Aceh Tsunami
26 Dec 2004

Tasik earthquake 
26 June 2010

China Earthquake 
26 July 1976

Taiwan earthquake 
26 July 2010

Japan Earthquake
 26 Feb 2010

Mentawai Tsunami 
26 October 2010

Gujarat Earthquake 
26 Jan 2001

China Earthquake 
26 July 1976

Taiwan earthquake 
26 July 2010

Japan Earthquake 
26 Feb 2010

Mumbai attack 
26/11

Mumbai floods 
26 July 2005

Now Nepal earthquake 
26 April 2015...!