Article history: Received 9 September 2015 Received in revised form 8 April 2016 Accepted 31 May 2016 Available online 3 June 2016

Article history: Received 19 September 2010 Received in revised form 18 April 2011 Accepted 17 November 2011 Available online 27 December 2011

Article history: Received 16 January 2012 Received in revised form 27 April 2013 Accepted 19 August 2013 Available online 11 September 2013

Article history: Received 12 April 2008 Received in revised form 21 August 2008 Accepted 25 August 2008 Available online 5 September 2008

Article history: Received 10 September 2012 Received in revised form 12 March 2013 Accepted 24 March 2013 Available online 23 April 2013

Article history: Received 16 April 2012 Received in revised form 16 July 2012 Accepted 19 September 2012 Available online 17 December 2012

Article history: Received 18 September 2013 Received in revised form 26 March 2014 Accepted 29 March 2014 Available online 4 April 2014

Article history: Received 11 April 2012 Received in revised form 5 May 2013 Accepted 4 September 2013 Communicated by J. Kratochvil

Article history: Received 11 April 2012 Received in revised form 17 July 2012 Accepted 31 August 2012 Available online 17 September 2012

Article history: The 1999 Chi-Chi earthquak Received 22 April 2008 Received in revised form 30 September 2008 Accepted 4 October 2008 Available online xxxx