Earthquake {gpk} | R Documentation |
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)