ANNOUNCEMENT

                                IASPEI 97
                           
                            AUGUST 18-28, 1997
                           Thessaloniki, Greece

 
The Second Circular for the 29th General Assembly of the International 
Association of Seismology and Physics of the Earth's Interior is now
available in hard copy or on the WWW at http://www.iaspei97.auth.gr and
http://www.csd.net/~bergman/iaspei/ At these WWW sites you will also find
all the necessary meeting forms (registration, hotel and abstract) which
can be submitted electronically or downloaded and mailed.

For hard copies of the Second Circular or additional information please
send e-mail to iaspei@lesvos.geo.auth.gr or engdahl@gldfs.cr.usgs.gov
Alternatively, send your request by fax to 30-31-998528, 30-31-214553,
1-303-273-8450, or 1-303-273-8600.

Abstract and early registration deadline: March 31, 1997.

We look forward to seeing you at Thessaloniki.


                                LOC IASPEI 97
                           Geophysical Laboratory
                    Aristotle University of Thessaloniki
                               GR54006 Greece




W6 Electromagnetic Signals Related to Tectonic Processes
Scope: Tectonic processes, chiefly earthquakes and volcanic 
eruptions, have reportedly generated electromagnetic signals prior 
to, during, and after such events. These signals may be associated 
with either anomalous electric or magnetic fields, or both. Most 
published reports of such signals lack corroborating measurements of 
stress, strain, or other geophysical phenomena however, making 
identification of a mechanism problematic, if not impossible. The 
conveners would like to encourage papers which illustrate clear 
examples of anomalous signals, preferably recorded on multiple 
sensors. Special emphasis should be placed on defining the nature of 
the anomalous signals, and clear discussion of the identification of 
cultural noise sources is necessary. All papers should include 
complete characterization of the experimental apparatus.
Laboratory studies and models of source mechanisms are also 
encouraged, with special emphasis on electromagnetic fields 
generated by transient fluid flow. Studies of the statistical evaluation 
of electromagnetic precursors will not be accepted for this session 
because other sessions will cover this aspect of earthquake 
prediction.
Conveners: S. Park (USA), J. Zschau (Germany), P. Varotsos (Greece)
[Prof. Steve Park, Department of Earth Science, University of 
California, Riverside, Riverside, CA 92521, USA; Tel: 1 714 787 4324; 
E-mail: magneto@ucrmt.ucr.edu]