quakes.bay
Bay Area Earthquakes
Description
The quakes.bay data frame is a marked spatial point pattern data set
listing the location, time, and magnitude of earthquakes in the San
Francisco Bay Area from 1962 to 1981.
The data frame contains the following columns.
Arguments
| longitude |
the negative longitude of quake location.
|
| latitude |
the latitude of the quake location.
|
| magnitude |
the size of the quake.
|
| date |
the date of the quake; an object of class Date.
|
| hour |
the hour of the quake.
|
| minute |
the minute of the quake.
|
| second |
the second of the quake.
|
Source
The data are from Peter Guttorp, Statistics Department, University of
Washington, Seattle, Washington.