another alternative...
note 'crisis' is singular if quantifying in this way ("a" three-fold crisis)

or perhaps "triple whammy" (not a serious contender...)

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Note added at 22 mins (2006-02-23 01:38:20 GMT)
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FSO: Global Analysis with JR Nyquist "A Threefold Crisis " 09/16/2005The impending crisis is threefold. America faces economic, international and internal troubles. © 2005 Jeffrey R. Nyquist Email l Website l FSO Archives ...
www.financialsense.com/stormwatch/geo/pastanalysis/2005/091... -

Transitional Program - Revolutionary Agenda for the US - ResolutionThe Threefold Crisis Facing US Working People ... There is a threefold crisis facing working people in the United States today: 1) We confront a deepening ...
www.marxists.org/history/etol/document/fit/fit06.htm - 66k -

Families in Society: Advancing Social Work With Older AdultsThreefold Crisis. The lack of preparedness for these human needs and the capacity to support and address them constitute a threefold crisis confronting ...
www.findarticles.com/p/articles/ mi_qa3625/is_200507/ai_n15639563 - 34k -

http://www.google.com/search?hl=en&lr=&c2coff=1&rls=GGIC,GGI...

http://www.google.com/search?hl=en&lr=&c2coff=1&rls=GGIC,GGI...

I prefer 'danger' in this context.

Women in Iraq are facing a threefold danger from US troops and prisons, Islamic fundamentalists and international sex traffickers. Photos of women brutalized in Abu Ghraib briefly appeared on the internet and then disappeared, ...
http://www.washingtonfreepress.org/73/northwestBeyond.htm

http://venus.ci.uw.edu.pl/~rubikon/forum/claudia1.htm

action plan for crisis management of three major/critical issues
pertaining to youth

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Note added at 5 hrs (2006-02-23 06:34:35 GMT)
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Destitution, poor living conditions, inadequate education, malnutrition, illiteracy, unemployment and lack of leisure-time activities are factors that marginalize young people, which makes some of them vulnerable to exploitation as well as to involvement in criminal and other deviant behaviour
Objectives and actions reflect the three themes of International Youth Year: ... and jointly plan innovative approaches to critical issues concerning youth. ...
www.dinf.ne.jp/doc/japanese/intl/un_dinf/un_5081.htm - 102k

I know it is a bit overblown. I believe, though, that there is a need to stress that these crises are 大危機 thus greater than and cannot be equated with run of the mill 危機.

Just trying to be more specific -----