http://earthquake.usgs.gov/earthquakes/eventpage/usb000tp5q#general_summary - Earth Sciences bibliographies - in Harvard style

In-text: (BBC - GCSE Bitesize: Effects of an earthquake, 2015)

Your Bibliography: Bbc.co.uk. 2015. BBC - GCSE Bitesize: Effects of an earthquake. [online] Available at: <http://www.bbc.co.uk/schools/gcsebitesize/geography/natural_hazards/earthquakes_rev3.shtml> [Accessed 9 March 2015].

In-text: (2015)

Your Bibliography: Earthquake.usgs.gov. 2015. [online] Available at: <http://earthquake.usgs.gov/earthquakes/eqarchives/year/stats/2010_both.gif> [Accessed 9 March 2015].

In-text: (M7.1 - Northern Mid-Atlantic Ridge, 2015)

Your Bibliography: Earthquake.usgs.gov. 2015. M7.1 - Northern Mid-Atlantic Ridge. [online] Available at: <http://earthquake.usgs.gov/earthquakes/eventpage/usb000tp5q#general_summary> [Accessed 9 March 2015].

In-text: (Canterbury Royal Commission, 2015)

Your Bibliography: http://canterbury.royalcommission.govt.nz/. 2015. Canterbury Royal Commission. [online] Available at: <http://canterbury.royalcommission.govt.nz/documents-by-key/20120309.3765/$file/ENG.DEV.0001A.pdf> [Accessed 10 March 2015].