Earthquakes of Japan
A data frame with 9189 rows and 6 columns giving occurrence date, time (in decimal days after the first earquake), longitude, latitude, magnitude and depth of shallow earthquakes (depth < 100 km) occurred since 1966-01-01 till 2016-01-01 in Japan and its vicinity (128-145E and 27-45N). Only earthquakes with magnitude greater than or equal to 4.5 are included.
An object of class
"data.frame" containing the following columns:
dateOccurrence date in the format "yyyy/mm/dd"
timeOccurrence time in decimal days after the first earquake
longLatitude of epicenter in decimal degrees
latLatitude of epicenter in decimal degrees
magMagnitude of each earthquake by JMA (Japan Meteorological Agency)
depthDepth of each earthquake
Data retrieved from the ISC Bulletin event catalogue
International Seismological Centre, On-line Bulletin, http://www.isc.ac.uk, Internatl. Seis. Cent., Thatcham, United Kingdom, 2013.
Di Giacomo, D., Harris, J., Villasenor, A., Storchak, D. A., Engdahl, E. R., Lee, W. H., & Team, D. E. (2015). ISC-GEM: Global Instrumental Earthquake Catalogue (1900-2009), I. Data collection from early instrumental seismological bulletins. Physics of the Earth and Planetary Interiors, 239, 14-24.
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