Earthquake {gpk}

Modeling earthquake aftershocks

Description

5 Seismology is the study of earthquakes. An earthquake creates shock waves that travel from epicenter outwards. Like any waveform these waves have two main features. One is amplitude and the other is period. Amplitude is the maximum height from the x axis (or alternatively half of the distance between peak and trough) while period is the distance along x axis between two successive peaks. For more details, go to the web and fetch details from the file "EarthQuake.doc".

Usage

data(Earthquake)

Format

A data frame with 66 observations on the following 13 variables.

Date

Date

Hours

Hours

Minutes

Minute

Magnitude_IMD

Magnitude of earth quake as reported by India meteorology department (IMD)

Magnitued_USGS

Magnitude of earth quake at epicentral distance >= 50 as reported by United States Geological Survey (USGS) (mb)

Magnitude_NGRI

Magnitude of earth quake at epicentral distance >= 150 as reported by National Geophysical Research Institute (NGRI) (Ms)

Coda_duration_1_mm

Coda duration (seconds) at 1mm of background noise level

Coda_duration_2_mm

Coda duration (seconds) at 2mm of background noise level

Coda_duration_6_mm

Coda duration (seconds) at 6mm of background noise level

Coda_duration_10_mm

Coda duration (seconds) at 10mm of background noise level

Details

Regression, data transformation may be considered for analysis.

Source

http://ces.iisc.ernet.in/hpg/nvjoshi/statspunedatabook/databook.html

Examples

data(Earthquake)