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Christian Ehnis

Christian Ehnis

Lecturer; PhD Candidate

Rm 4053
H70 - Abercrombie Building
The University of Sydney
NSW 2006 Australia

Telephone +61 2 8627 5208


Christian studied Information Systems at the University of Münster. He is currently a PhD candidate and joined the University of Sydney in 2013. He works as a research assistant and a tutor within the discipline.

Christian’s research focuses on the utilisation of social media in disaster management. For his thesis, he investigates the integration of microblogging services in emergency management organisations for the engagement with the general public during extreme events, such as natural disasters. Christian is a member of the Interoperability for Extreme Events Research Group, and Digital Disruption Research Group.


Journal Article/s

Stieglitz S, Bunker D, Mirbabaie M and Ehnis C 2018 'Sense-making in social media during extreme events', Journal of Contingencies and Crisis Management, vol.26:1, pp. 4-15 [Link]


Conference Proceeding/s

Bunker D, Levine L, Ehnis C, Sleigh A and Babar A 2017 'When Worlds Collide: Adoption and Diffusion of Information Systems (IS) for Situational Awareness', Proceedings of the IFIP 8.6 Working Conference 2017 - Re-Imagining Diffusion of Information Technology and Systems: Opportunities and Risks, Guimarães, Portugal, 5th June 2017


Conference Paper/s

Bunker D, Sleigh T, Levine L and Ehnis C 2015 'Disaster Management: Building Resilient Systems to Aid Recovery', 2015 Bushfire and Natural Hazards CRC & AFAC Conference, Adelaide, Australia, 3rd September 2015


Book Section/s

Ehnis C, Mirbabaie M, Stieglitz S and Bunker D 2014 'Communication Roles in Public Events' in Information Systems and Global Assemblages. (Re)Configuring Actors, Artefacts, Organizations: IFIP WG 8.2 Working Conference on Information Systems and Organizations, IS&O 2014, Auckland, New Zealand, December 11-12, 2014. Proceedings, ed. Bill Doolin, Eleni Lamprou, Nathalie Mitev & Laurie McLeod, Springer, Heidelberg, Germany, pp. 207-218 [Link]

Conference Proceeding/s

Ehnis C, Mirbabaie M, Bunker D and Stieglitz S 2014 'The Role of Social Media Network Participants in Extreme Events', Proceedings of the 25th Australasian Conference of Information Systems ACIS 2014, Auckland, New Zealand, 10th December 2014


Conference Proceeding/s

Ehnis C and Bunker D 2013 'The Impact of Disaster Typology on Social Media Use by Emergency Services Agencies: The Case of the Boston Marathon Bombing', Proceedings of the 24th Australasian Conference on Information Systems ACIS 2013, Melbourne, Australia, 6th December 2013

Bunker D, Ehnis C, Seltsikas P and Levine L 2013 'Crisis Management and Social Media: Assuring Effective Information Governance for Long Term Social Sustainability', Proceedings of the 13th Annual IEEE Conference on Technologies for Homeland Security HST 2013, Boston, United States, 14th November 2013


Conference Proceeding/s

Ehnis C and Bunker D 2012 'Social Media in Disaster Response: Queensland Police Service - Public Engagement During the 2011 Floods', Proceedings of the 23rd Australasian Conference on Information Systems ACIS 2012 - "Location, location, location", Geelong, Australia, 5th December 2012

Selected grants

2017 - 2018

2014 - 2015

Research Expertise

  • Social Media in Disaster Management
  • Digital Disruption
  • Enterprise Systems

Recent Units Taught

  • INFS3040 Enterprise Systems and Integrated Business

    2017: S1,

  • INFS5000 Accounting Information Systems

    2017: S2,

  • INFS6012 Enterprise Systems Management

    2017: S2,