WP 2 Analysis of multiparameter geophysical data approaching the June 2000 earthquakes, assessing state of stress

Start date or starting event:


Lead contractor:


Participants:                                    IMOR, UU, UEDIN, NVI, CNRS-UMR 5562, CAU, WAPMERR



Analysis and linking together multiparameter geophysical observations expressing stress or strain induced variations with time approaching the June 2000 earthquakes and after these.

Explain the possibly common source for these variations.

Explain them physically.

Formulate procedures to assess increase or decrease in probability of earthquake hazard on basis of observable multiparameter observations.



Observations and results of evaluations in  WP 2.1-2.5.

Evolving models and evolving crustal parameters in various other workpackages.


Methodology / work description:

Lead contractors  from WP 2.1-2.5 work with the coordinator  in a forum for analyzing the multidisciplinary observations. They will also be in close contact with other groups, especially the modellers.  In Iceland there are many examples of apparent coupling between hazards at large distances. One attempt to explain this is that strainwaves originating from a large intrusive activity at depth, above the top of the hotspot in the center of Iceland or elsewhere can cause such coincidenses by triggering. Modern geophysical observations have also indicated such links between smaller events. Especially there are several indications of patterns that may be related to the strain build-up before the June 2000 earthquakes. Such patterns in space and time will be searched and analyzed in WP 2.1-2.5 based on observations of microearthquakes,  deformation and strain.  Combining results of WP 2.1-2.5 and new results of other workpackages, especially the modelling  will be applied to formulate procedures to assess the state of stress  or increasing probability of earthquakes caused by crustal loading from outside the seismic zones or closeness to fractures criticality within the zone.


Deliverables including cost of deliverable as percentage of total cost of the proposed project:


Sessions at regular project meetings.

M1    Re  RE  0,4%


Sessions at regular project meetings.

M10  Re  RE  0,4%


A special report describing various patterns observed by the different methods.

M16  Re  PU  0,6%


Sessions at regular project meetings.

M20  Re  RE  0,4%


Procedures for describing the state of stress or Coulomb stress conditions in the SISZ.

M20  Re  PU  0,5%


A peer-reviewed paper describing the common results.

M24  Re  PU  0,6%



Milestones: Delivery of the above items at the date indicated.