VCI_earthquakes

The source organization for this earthquake data catalog is the Canadian National Earthquake Database.
Its space-time window covers \(126.25^\circ\)W
 to \(131^\circ\)W in longitude and \(48^\circ\)N to \(50^\circ\)N in latitude and the period from
 2000-01-01 00:00:00 to 2019-12-31 23:59:59 (UTC).
 Note: The hypocenter depth of the earthquakes of interest ranges from about \(-5\) km to \(1000\) km.

datasets

The 2-D spatial and temporal Epidemic Type Aftershock Sequence ('ETAS') Model is
widely used to 'decluster' earthquake data catalogs. Usually, the calculation of standard
errors of the 'ETAS' model parameter estimates is based on the Hessian matrix derived from
the log-likelihood function of the fitted model. However, when an 'ETAS' model is fitted to
a local data set over a time period that is limited or short, the standard errors based on
the Hessian matrix may be inaccurate. It follows that the asymptotic confidence intervals
for parameters may not always be reliable. As an alternative, this package allows for the
construction of bootstrap confidence intervals based on empirical quantiles for the parameters
of the 2-D spatial and temporal 'ETAS' model. This version improves on Version 0.1.0 of the
package by enabling the study space window (renamed 'study region') to be polygonal rather
than merely rectangular. A Japan earthquake data catalog is used in a second example to
illustrate this new feature.

Renjie Peng

ETASbootstrap

Bootstrap Confidence Interval Estimation for 'ETAS' Model
Parameters

Pierre Dutilleul

Christian Genest

VCI_earthquakes function

An object of class data.frame with 5 columns:<ul>
<li>date: Occurrence date of earthquakes in the format "yyyy-mm-dd"</li>
<li>time: Occurrence time of earthquakes in the format "hh-mm-ss"</li>
<li>longitude: Longitude of the epicenter of earthquakes in decimal degrees</li>
<li>latitude: Latitude of the epicenter of earthquakes in decimal degrees</li>
<li>magnitude: Magnitude (Moment magnitude) of earthquakes</li>
</ul>

VCI_earthquakes: Original example data for the function `ETAS_Boots` 0.1.0

Description

Usage

Arguments

Format