NASDA's
Earthquake Remote Sensing Frontier Research
Seismo-Electromagnetic Phenomena in the Lithosphere, Atmosphre and Ionosphere
FINAL REPORT

CONTENTS



Acknowledgment

1. Introduction

1.1 General stream of earthquake research and main targets of the Frontier/NASDA research.
1.2 Classification of previous activities. Preliminary selection of methods.


2. Results on Seismo-Electro-Magnetic Phenomena (SEMP) inside the ground: ULF magnetic effect and related effects.

2.1 Previous results at Spitak (Armenia, FSU, Ms7.1, October 17, 1990) and at Loma Prieta (USA, Ms7.1, October 17, 1990)
2.2 Guam event, Ms7.1, August 8, 1993
2.3 Results of ULF observation in connection with Ms8.0, February 17, 1996 earthquake at Biak, Indonesia.
2.4 Observation at Izu in Japan. First results in 1998.
2.5 Principal component analysis of ULF geomagnetic data for Izu Islands earthquakes in July 2000.
2.6 Results of complex observation at Matsushiro station, Japan (1998): AE-ULF connection as evidence of microfracturing.
2.7 Explanation of ULF effect by microfracturing and gas release.
2.8 Future direction on the ULF research.


3. Results on SEMP in the atmosphere: VLF transmitter signal's effect (VLFS) and related effects.

3.1 Results of previous researches.
3.2 VLF signal effect for the Kobe earthquake.
3.3 Statistical study on VLFS effect.
3.4 On the association of anomalies in subionospheric VLF propagation at Kasugai with earthquakes in the Tokai area, Japan.
3.5 Seismic effect on propagation of subionospheric LF radiowaves in Italy.
3.6 Ionospheric perturbations for the Tottori earthquake on October 6, 2000.
3.7 VLF/LF sounding of the lower ionosphere to study the role of atmospheric oscillations in the lithosphere-ionosphere coupling.
3.8 Theoretical consideration.
3.9 Future directions of VLF research.
3.10 Seismo-atmospheric perturbations as found by the observation of over-horizon FM transmitter signals.


4. Results on SEMP observed on satellites: Plasma-wave, thermal IR effects.

4.1 Previous researches.
4.2 Statistical study of over the world density variations.
4.3 Case study of density/temperature and electric field variations.
4.4 Comparison of plasma and wave data. Construction of special database.
4.5 Statistical and case study in the special database. Possible theoretical approach.
4.6 First results of thermal IR satellite data application for Earthquake research in China and Japan.


5. Workshop


6. Conclusions


Publications

March 2001, Hayakawa lab., UEC