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WPGM meeting was organized for the first time in Beijing, China and took place in the Beijing convention Center. A
special session was organized under on the Tectonophyscs section titled " Observation, Methodology, and Theory of Electromagnetic Signals Associated with Earthquake" and chaired by Q. Huang (Peking University, China), D. Ouzounov (GMU, USA), L. Telesca (IMAA, Italy) and T. Nagao (Tokai University, Japan). Session activities include poster session with 14 presentations and three oral sessions with totally 17 oral presentations. All poster and oral sessions all papers were divided into five topic groups:
EM regional studies and monitoring
Earthquake-related electro-magnetic studies and its future development in China (J. Qian), Multi-geophysical and
multi-geochemical monitoring of earthquakes in Yunnan-Sichuan region, China (Q. Huang), ULF magnetic transfer function approach for monitoring of crustal activity (K. Hattori), The comparison of the neutral current and the conventional telluric current measurements in Japan (T. Nagao) and MT study at the southern Boso peninsula Japan (I. Takahashi).
Geoelectrical Studies
Geoelectrical investigations in seismic active areas: state-of-the-art and future challenges (V. Lapenna), The
polarization feature of geoelectrical field before strong earthquakes (X. Zhang), Monitoring of the underground electrical structure change by using the wavelet-based electromagnetic transfer function (M. Harada), and New technology of georesistivity observation and its application at earthquake precursor monitoring (P. Zhang).
Satellite and Space related studies
A statistical study of seismo-ionospheric precursors (J. Liu), Emitted long wave radiation variability from IR
satellite data prior to major earthquake (D. Ouzounov), Correlation between time-specific solar activity and subsequent earthquakes (K. R Schulenberg), and Analysis of GPS/TEC variations associated with large earthquakes using GAMIT (K. Hattori).
Lab experiments and sensors
Self-potential anomalies of rocks under biaxial compression (J Hao), Study on electromagnetic radiation response
of stress state in coal body (L Zhongh), PS-100 anti-interference precision earth-electricity observation system and geoelectric resonance waves triggered by tidal forces prior to larger shallow earthquakes (Y. Zhao), Electromagnetic radiation law before rock burst (W. Enyuan), Numerical tests on electro-magnetic emission of coal or rock under process of uniaxial compression loading (Z. Enlai) and The antenna design in receiving EME during fracture of coal or rock (H. Daen).
Models and analysis
Principal component analysis and singular spectrum analysis of ULF geomagnetic data associated with
earthquakes (K. Hattori), The record principle and anomaly features of ULF electromagnetic disturbance (W. Xiao), Statistical modeling (tests) of the relationship between precursory phenomena and earthquake occurrences (J. Zhuang),
Statistical analysis of ULF magnetic data and magneto telluric transfer functions data for the 2004 Parkfield
earthquake (K. Kappler), Mathematical modeling of the electromagnetic radiation by rock fracturing in physical simulation experiments (B. Wen) and Chaos characteristics of shock bump and its significance in predication (W Jing).
Widely presented topic during the all sessions was the MDCB-5 precursor monitoring approach. Six posters were
prepared by Chen I-wan, W.Yang, W.Wang, L. Wang, et al. from Califas Consultants, Ltd, Beijing. They consider that the new developed EM sensors, methodology and monitoring approach deliver weekly forecast for the major earthquakes in the Asian region.
After closing all presentations Q. Huang opened the floor for discussion and ask all foreign participants what are
their advices to the EM science community in China. D. Ouzounov (USA) proposed to the session to make a collection CD with all oral and poster talks CD in PDF format and delivery to each speaker; to work towards more close cooperation with seismology and Tectonophysics communities, in order to achieve a progress in the earthquake monitoring/forecast topic; to succeed into the new Seismo-electromagnetic Chinese satellite mission, a joint work is needed between ground EM and ionospheric science groups to be able to integrate and validate both approaches into a common project for earthquake forecasts in China. T. Nagao (Japan) proposed that future work should be focused on the developing a comprehensive model to explain the nature of the different EM precursors and their relationship to the earthquake preparation process. K. Hattori (Japan) and V. Lappena (Italy) both concluded about the importance of ULF/ELF ground network measurements for future earthquake monitoring in China. Q. Huang (China) made the final conclusion about the session dedicated to the EM phenomena related to earthquakes organized in China and thank to all for their participations. ![]()
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