GEOPHYSICS AND SEISMOLOGY LAB.

General Module

Course Sheet

Course code:

GE311

Academic Year of enrolment:

2021

Year of supply:

2022/2023

Type of Course:

Characterising

Degree:

Course of 2nd Cycle Degree in GEOLOGICAL SCIENCES AND TECHNOLOGIES OF EARTH AND PLANETS

Disciplinary Sector:

Geophysics of Solid Earth

Is part of:

3D SEISMOTECTONICS AND LABORATORY

Location:

CHIETI

Credits:

Programme Year:

Professor and Collaborators:

DE NARDIS RITA

Cycle:

First semester

Hours of classroom activity:

Individual study hours:

Prerequisites:

Objectives

The training aims to offer the student seismological, geophysical, and signal analysis tools to perform calculations and evaluations useful for the definition of seismotectonic models, and the evaluation of the local seismic response and seismic hazard.

Contents

1) Analysis of active and passive, natural and anthropic, seismic signals;
2) Seismological data processing for the calculation of earthquake locations, focal mechanisms, and magnitude;
3) Definition and characterization of the crustal structure: tomographic methods;
4) Statistical analysis of seismic catalogs;
5) Calculation of the deformation fields;
6) Calculation of stress fields.

Extended Syllabus

1 CFU Historical development of global seismology; seismic networks; seismic waveform: basic knowledge and processing, seismic waves vs primary source type (seismic signals: noise, earthquakes, blast, etc .)
1 CFU Source location (theoretical aspect, standard and new location algorithms, estimation of seismic location parameters), Energy Release (magnitude and seismic moment)
1 CFU Seismic source mechanism (Focal mechanism Solutions using polarity of P-wave fast motion, S-wave to P-wave amplitude ratios, using waveform inversion - i.e. NEIC fast moment tensors, Harvard CMT solutions, EMSC rapid source parameter determinations)
1 CFU Historical seismicity (Major historical events in the world, characterization of historical events, Macroseismic scales, macroseismic fields, “location” of historical events, completeness assessment of a catalogue), overview of empirical relationships between magnitude/intensity, strong motion parameters and intensity: an open discussion
1 CFU Instrumental catalogues, catalog artifacts and quality control, seismicity characterization (background seismicity, swarms, seismic sequences), spatio-temporal analysis, seismicity rates, Estimation of Gutenberg-Richter seismicity parameters, Stochastic simulation of earthquake catalogs.
1 CFU Seismic deformation from earthquake and GPS, overview of Stress inversion methods from earthquake focal mechanism solutions, Coulomb stress calculation

Recommended Bibliography

- Zollo A., Emolo, A., (2011), Terremoti e onde. Metodi e pratica della sismologia moderna, Liguori editore;
- Lay Thorne, Wallace Terry C., (1995), Modern Global Seismology, Accademic Press
- Udias Agustin, (2000), Principles of Seismology, Cambridge University Press
- Scherbaum, Frank (2001), Of Poles and Zeros Fundamentals of Digital Seismology, Springer
Lecture notes on digital seismic signal analysis

Teaching Methods

-Theoretical lectures
-Theoretical exercises
- Practical exercises with geophysical instrumentation
It will be possible to follow interuniversity thematic seminars
Attendance is recommended

Evaluation methods

Verification of learning:

Verification of learning can take place at different times:

1) with partial exams carried out during the course;
2) with a general exam, ORAL, at the end of the course

Contacts/More Information

Students,
1) will be able to use the "Seismology and Geophysics Laboratory for seismotectonics and the territory", at Ud’A;
2) can carry out traineeships at Italian geophysical institutes or in other universities belonging to CRUST (Interuniversity Center for 3D seismotectonics with territorial applications);
3) can carry out an interdisciplinary thesis of seismology and seismotectonics also in the CRUST area
4) will be able to use two hours per week, in addition to the expected number of hours, to receive further clarifications on more complex topics.

Università degli Studi
"G. d'Annunzio"

Chieti - Pescara

Aree