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| Content Provider | Springer Nature Link |
|---|---|
| Author | Rotondi, Renata Varini, Elisa |
| Copyright Year | 2003 |
| Abstract | Point processes are the stochastic models most suitable for describing physical phenomena that appear at irregularly spaced times, such as the earthquakes. These processes are uniquely characterized by their conditional intensity, that is, by the probability that an event will occur in the infinitesimal interval (t, t+Δt), given the history of the process up tot. The seismic phenomenon displays different behaviours on different time and size scales; in particular, the occurrence of destructive shocks over some centuries in a seismogenic region may be explained by the elastic rebound theory. This theory has inspired the so-called stress release models: their conditional intensity translates the idea that an earthquake produces a sudden decrease in the amount of strain accumulated gradually over time along a fault, and the subsequent event occurs when the stress exceeds the strength of the medium. This study has a double objective: the formulation of these models in the Bayesian framework, and the assignment to each event of a mark, that is its magnitude, modelled through a distribution that depends at timet on the stress level accumulated up to that instant. The resulting parameter space is constrained and dependent on the data, complicating Bayesian computation and analysis. We have resorted to Monte Carlo methods to solve these problems. |
| Starting Page | 79 |
| Ending Page | 92 |
| Page Count | 14 |
| File Format | |
| ISSN | 16182510 |
| Journal | Statistical Methods and Applications |
| Volume Number | 12 |
| Issue Number | 1 |
| e-ISSN | 1613981X |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2003-01-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Data-constrained parameters Magnitude distribution Metropolis-Hastings algorithm Stress release model Statistics Statistics for Business/Economics/Mathematical Finance/Insurance Economic Theory |
| Content Type | Text |
| Resource Type | Article |
| Subject | Statistics and Probability Statistics, Probability and Uncertainty |
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