Seismology and Laboratory
A.Y. 2018/2019
Learning objectives
The course aims to provide the necessary knowledge for understanding the generation and effects of earthquakes and the modelling of propagation of seismic wave through the planet. The course also discusses applications of such a knowledge in order to assess the seismic hazard and some of the most recent advancements in seismology
Expected learning outcomes
Capability to understand the physical laws governing earthquake generation processes and the propagation of seismic waves, the site effects and the seismic response spectrum of buildings.
Capability to understand the main elements that define the seismic hazard and to evaluate the seismic action based on current legislation.
Capability to access the databases of the main seismic data centers in order to obtain seismic catalogs, information on seismic networks and to process the waveforms in order to estimate the magnitude, the origin time and the hypocenter of seismic events.
Basic programming skills in Python.
Capability to understand the main elements that define the seismic hazard and to evaluate the seismic action based on current legislation.
Capability to access the databases of the main seismic data centers in order to obtain seismic catalogs, information on seismic networks and to process the waveforms in order to estimate the magnitude, the origin time and the hypocenter of seismic events.
Basic programming skills in Python.
Lesson period: Second semester
Assessment methods: Esame
Assessment result: voto verbalizzato in trentesimi
Single course
This course cannot be attended as a single course. Please check our list of single courses to find the ones available for enrolment.
Course syllabus and organization
Single session
Responsible
Lesson period
Second semester
modulo: Sismologia
Course syllabus
The course aims to provide the necessary knowledge for understanding the generation and effects of earthquakes and the modelling of propagation of seismic wave through the planet. The course also discusses applications of such a knowledge in order to assess the seismic hazard and some of the most recent advancements in seismology
SEISMIC WAVES
Fracture's mechanism, sismotectonics and Anderson's theory of faulting
Hooke's law, momentum equation and body seismic waves (compressional and shear waves)
Refraction, attenuation of seismic waves, eiconal equation and ray's theory in stratified media and spherical Earth models.
Surface seismic waves (Rayleigh and Love waves), tsunami and free oscillation of the Earth
SEISMIC SOURCE
Seismic moment tensor, Volterra's representation theorem, point-like forces, couple of forces and double couple of forces.
Determination of the epicenter and hypocenter, focal mechanism and energy released by earthquakes.
3) SEISMIC HAZARD
Seismic hazard and regulation.
System's response, free and forced oscillation and methods of calculation.
Temporal distribution, seismic moment-frequency relation, attenuation's law, earthquake catalogues and seismic moment conservation principle.
4) SEISMIC MICROZONING
Methods of seismic microzoning
Evaluation of site effects, liquefaction and seismic amplification.
5) RECENT PROGRESSES IN SEISMOLOGY
Geodetic data inversion of the dislocation distribution over the fault plane.
Space gravity data from satellite missions GRACE (NASA) and GOCE (ESA) and the gravitational seismology.
Shift of the rotation axis due to megathrust earthquakes at subduction zones.
Modelling of global seismicity during the late Mesozoic and Cenozoic.
SEISMIC WAVES
Fracture's mechanism, sismotectonics and Anderson's theory of faulting
Hooke's law, momentum equation and body seismic waves (compressional and shear waves)
Refraction, attenuation of seismic waves, eiconal equation and ray's theory in stratified media and spherical Earth models.
Surface seismic waves (Rayleigh and Love waves), tsunami and free oscillation of the Earth
SEISMIC SOURCE
Seismic moment tensor, Volterra's representation theorem, point-like forces, couple of forces and double couple of forces.
Determination of the epicenter and hypocenter, focal mechanism and energy released by earthquakes.
3) SEISMIC HAZARD
Seismic hazard and regulation.
System's response, free and forced oscillation and methods of calculation.
Temporal distribution, seismic moment-frequency relation, attenuation's law, earthquake catalogues and seismic moment conservation principle.
4) SEISMIC MICROZONING
Methods of seismic microzoning
Evaluation of site effects, liquefaction and seismic amplification.
5) RECENT PROGRESSES IN SEISMOLOGY
Geodetic data inversion of the dislocation distribution over the fault plane.
Space gravity data from satellite missions GRACE (NASA) and GOCE (ESA) and the gravitational seismology.
Shift of the rotation axis due to megathrust earthquakes at subduction zones.
Modelling of global seismicity during the late Mesozoic and Cenozoic.
modulo: Sismologia
GEO/10 - SOLID EARTH GEOPHYSICS - University credits: 6
Lessons: 48 hours
Professor:
Cambiotti Gabriele
unità didattica: Laboratorio di Sismologia
GEO/10 - SOLID EARTH GEOPHYSICS - University credits: 3
Practicals: 36 hours
Professors:
Cambiotti Gabriele, Crippa Bruno
Professor(s)
Reception:
Contact me by email
Section of Geophics - Dipartimento Scienze della Terra, via Botticelli 23, 20133 I-Milano