iran.quakes {ETAS}

An Iranian Earthquake Catalog

Description

A data frame with 5970 rows and 5 columns giving occurrence date, time, longitude, latitude and magnitude of shallow earthquakes (depth < 100 km) occurred since 1973-01-01 till 2016-01-01 in Iran and its vicinity (40-65E and 22-42N). Only earthquakes with magnitude greater than or equal to 4.5 are included.

Usage

data(iran.quakes)

Format

An object of class "data.frame" containing the following columns:

• date Occurrence date in the format "yyyy-mm-dd"

• time Occurrence time (UTC) in the format "hh:mm:ss"

• long Latitude of epicenter in decimal degrees

• lat Latitude of epicenter in decimal degrees

• mag Magnitude in body-wave magnitude scale (mb)

Source

The ANSS Comprehensive Catalog (ComCat): https://earthquake.usgs.gov/earthquakes/search/

Examples

  summary(iran.quakes)

  gregion <- list(lat = c(26, 25, 29, 38, 35), long = c(52, 59, 58, 45, 43))
  # creat an earthquake catalog
  iran.cat <- catalog(iran.quakes, study.start = "1991/01/01",
     study.end = "2011/01/01", region.poly = gregion, mag.threshold = 4.5)


  ## Not run: 
  plot(iran.cat)
  iran.fit <- etas(iran.cat)
## End(Not run)

  zagros <- list(lat = c(27, 26, 29, 29, 35, 33),
     long = c(52, 58, 58, 54, 48, 46))
  iran.cat <- catalog(iran.quakes, study.start = "1991/01/01",
     study.end = "2011/01/01", region.poly = zagros, mag.threshold = 4)