地震学

Earthquake Seismology

The course explores the processes that cause earthquakes, as well as the methodologies used by seismologists to analyze seismograms, to measure source parameters, and to simulate the seismic wave impact at the Earth’s surface.

493 次查看
那不勒斯费德里克二世大学
edX
  • 完成时间大约为 12
  • 高级
  • 英语, 意大利语
注:因开课平台的各种因素变化,以上开课日期仅供参考

你将学到什么

Concepts and experimentsfocused on uncovering earthquake processes

Physical processes at the origin of earthquakes

Seismic wave propagation and complex rupture models

The basic elements of real-time seismology

课程概况

The course introduces the basic theories and experimentalworkfocused on earthquake generation and seismic wave propagation. It centers on methods and technologies used to image the earthquakeas well as real-time simulations and mapping.

The course begins with a review of the theoretical models and observations related to earthquakes; introducing different scales of observation of seismic phenomena: the size of the source, the spatial extent of the monitoring networks, and the frequency/wavelength range of the seismic signals.

The “point-source” approximation of the earthquake source has long been used to characterize the faulting process. Here, it will be used to illustrate the concepts and estimation methods of location, magnitude, seismic moment, and focal mechanisms; all deriving from this simplified but effective representation of the seismic phenomenon.

Earthquakes are caused by fracture phenomena that develop on extended fault surfaces hidden in the fragile layers of the Earth. The observations and the dynamic/kinematic rupture models will illustrate the modalities of nucleation, propagation, and arrest of an earthquake rupture. These help seismologists simulate the propagation of seismic waves and precisely predict the strong ground shaking produced by potentially destructive events.

Finally, the course will provide an overview of the basics of real-time seismology – the new frontier of research in earthquake science.

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