quake: Geographical locations of earthquakes and tectonic plates

In ks: Kernel Smoothing

Geographical locations of earthquakes and tectonic plates

Description

The quake data set contains the geographical locations of severe earthquakes in the years 100 and 2016 inclusive. The plate data set contains the geographical locations of the tectonic plate boundaries.

Usage

data(quake)
data(plate)
data(quakesf)
data(platesf)

Format

–For quake, a matrix with 5871 rows and 5 columns. Each row corresponds to an earthquake. The first column is the year (negative years indicate B.C.E.), the second is the longitude (decimal degrees), the third is the latitude (decimal degrees), the fourth is the depth beneath the Earth's surface (km), the fifth is a flag for the location inside the circum-Pacific belt (aka Pacific Ring of Fire). quakesf is a WGS84 sf version with a point geometry.

–For plate, a matrix with 6276 rows and 3 columns. Each row corresponds to an location of the tectonic plate boundaries. The first is the longitude, the second is the latitude, the third is the label of the tectonic plate. platesf is a WGS84 sf spatial version with a multipolygon geometry, where the individual plate line segments have been merged into a single multipolygon.

Source

Alhenius, H., Nordpil and Bird, P. (2014). World Tectonic Plates and Boundaries. https://github.com/fraxen/tectonicplates. Accessed 2021-03-11.

Bird, P. (2003) An updated digital model of plate boundaries, Geochemistry, Geophysics, Geosystems 4(3), 1-52. 1027.

NGDC/WDS (2017) Global significant earthquake database, National Geophysical Data Center, NOAA, doi:10.7289/V5TD9V7K. National Geophysical Data Center/World Data Service. Accessed 2017-03-30.

ks documentation built on Aug. 11, 2023, 1:10 a.m.