Geodetic And Geophysical Effects Associated With Seismic And Volcanic Hazards

1. Front Matter

   Pages i-vi

   PDF

2. Geodetic and Geophysical Effects Associated with Seismic and Volcanic Hazards

   • José Fernández

   Pages 1301-1303

3. Stress Changes Modelled for the Sequence of Strong Earthquakes in the South Iceland Seismic Zone Since 1706

   • Frank Roth

   Pages 1305-1327

4. 3-D Modelling of Campi Flegrei Ground Deformations: Role of Caldera Boundary Discontinuities

   • François Beauducel, Giuseppe De Natale, Franco Obrizzo, Folco Pingue

   Pages 1329-1344

5. Comparison of Integrated Geodetic Data Models and Satellite Radar Interferograms to Infer Magma Storage During the 1991–1993 Mt. Etna Eruption

   • Alessandro Bonaccorso, Eugenio Sansosti, Paolo Berardino

   Pages 1345-1357

6. GPS Monitoring in the N-W Part of the Volcanic Island of Tenerife, Canaries, Spain: Strategy and Results

   • J. Fernández, F. J. González-Matesanz, J. F. Prieto, G. Rodríguez-Velasco, A. Staller, A. Alonso-Medina et al.

   Pages 1359-1377

7. Far-field Gravity and Tilt Signals by Large Earthquakes: Real or Instrumental Effects?

   • Giovanna Berrino, Umberto Riccardi

   Pages 1379-1397

8. Study of Volcanic Sources at Long Valley Caldera, California, Using Gravity Data and a Genetic Algorithm Inversion Technique

   • M. Charco, J. Fernández, K. Tiampo, M. Battaglia, L. Kellogg, J. McClain et al.

   Pages 1399-1413

9. Gravity Changes and Internal Processes: Some Results Obtained from Observations at Three Volcanoes

   • Gerhard Jentzsch, Adelheid Weise, Carlos Rey, Carl Gerstenecker

   Pages 1415-1431

10. New Results at Mayon, Philippines, from a Joint Inversion of Gravity and Deformation Measurements

    • K. F. Tiampo, J. Fernández, G. Jentzsch, M. Charco, J. B. Rundle

    Pages 1433-1452

11. The Interpretation of Gravity Changes and Crustal Deformation in Active Volcanic Areas

    • M. Battaglia, P. Segall

    Pages 1453-1467

12. Intrusive Mechanisms at Mt. Etna Forerunning the July-August 2001 Eruption from Seismic and Ground Deformation Data

    • A. Bonaccorso, S. D’amico, M. Mattia, D. Patanè

    Pages 1469-1487

13. Methods for Evaluation of Geodetic Data and Seismicity Developed with Numerical Simulations: Review and Applications

    • K. F. Tiampo, J. B. Rundle, J. S. Sá Martins, W. Klein, S. Mcginnis

    Pages 1489-1507

14. A Free Boundary Problem Related to the Location of Volcanic Gas Sources

    • Jesús Ildefonso Díaz, Giorgio Talenti

    Pages 1509-1517

15. High CO2 Levels in Boreholes at El Teide Volcano Complex (Tenerife, Canary Islands): Implications for Volcanic Activity Monitoring

    • V. Soler, J. A. Castro-Almazán, R. T. Viñas, A. Eff-Darwich, S. Sánchez-Moral, C. Hillaire-Marcel et al.

    Pages 1519-1532

16. Simulation of the Seismic Response of Sedimentary Basins with Vertical Constant-Gradient Velocity for Incident SH Waves

    • F. Luzón, L. Ramírez, F. J. Sánchez-Sesma, A. Posadas

    Pages 1533-1547

17. The Use of Ambient Seismic Noise Measurements for the Estimation of Surface Soil Effects: The Motril City Case (Southern Spain)

    • Z. Al Yuncha, F. Luzón, A. Posadas, J. Martín, G. Alguacil, J. Almendros et al.

    Pages 1549-1559

18. Results of Analysis of the Data of Microseismic Survey at Lanzarote Island, Canary, Spain

    • A. V. Gorbatikov, A. V. Kalinina, V. A. Volkov, J. Arnoso, R. Vieira, E. Velez

    Pages 1561-1578

19. Microtremor Analyses at Teide Volcano (Canary Islands, Spain): Assessment of Natural Frequencies of Vibration Using Time-dependent Horizontal-to-vertical Spectral Ratios

    • Javier Almendros, Francisco Luzón, Antonio Posadas

    Pages 1579-1596

20. Tilt Observations in the Normal Mode Frequency Band at the Geodynamic Observatory Cueva de los Verdes, Lanzarote

    • A. V. Kalinina, V. A. Volkov, A. V. Gorbatikov, J. Arnoso, R. Vieira, M. Benavent

    Pages 1597-1611

Although geodetic monitoring techniques have been widely used in areas of seismic or volcanic activity, the difficulty inherent to their discrete nature means that they must be deployed carefully to ensure the best possible detection or sensitivity of these points (see e. g. , BALDI and UNGUENDOLI, 1987; JOHNSON and WYATT, 1994; SEGALL and MATTHEWS, 1997; Yu et al. , 2000). In many cases, a more global monitoring method, is required yet at the same time one that offers the highest level of sensitivity which enables detection of the phenomenon. Interferometry radar (InSAR) techniques have been shown to play an important role in seismic and volcanic monitoring because they cover large areas (100 x 100 km) and can be easily systematized in monitoring (see e. g. , MASSONNET and FEIGL, 1998; BDRGMANN et al. , 2000; MASSONNET and SIGMUNDSON, 2000; HANSSEN, 2001). The limitations inherent to the GPS and InSAR techniques (mainly observations at discrete surface points in the case of GPS and existence of non-coherent areas and the fact that, at present, the three displacement components cannot be obtained in SAR interferometry) can be overcome by using them together or other techniques (e. g. , PUGLISI and COLTELLI, 2001; RODRiGUEZ-VELASCO et al. , 2002; FERNANDEZ et al. , 2003).

• Geochemics
• Geodesy
• Seismicity
• Volcanic Activity
• earthquake
• geophysics
• microseism
• seismic
• volcano

• Instituto de Astronomía y Geodesia Facultad de Ciencias Matemáticas, Ciudad Universitaria, Madrid, Spain

  José Fernández

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