obspy.io.csv.core._write_csv

_write_csv(events, fname, fields='basic', depth_in_km=True, delimiter=',', header=None)[source]

Write ObsPy catalog to CSV file

Parameters:

  • events – catalog or list of events

  • fname – filename or file-like object to write to

  • fields – set format and header names of CSV file, see obspy.io.csv.FIELDS, you can use your own format string here, just make sure to use the pre-defined header names

  • depth_in_km – write depth in units of kilometer (default: True) or meter

  • delimiter – defaults to ‘,’, if the delimiter is changed, ObsPy’s read_events function will not automatically identify the file as CSV file

  • header – Use a non-default header row

Warning

If the parameters delimiter or header are changed, ObsPy’s read_events function will not automatically identify the file as CSV file

Example

>>> from obspy import read_events
>>> events = read_events()  # get example catalog
>>> events.write('local_catalog.csv', 'CSV')  # declare 'CSV' as format
>>> with open('local_catalog.csv') as f: print(f.read())
id,time,lat,lon,dep,magtype,mag
20120404_0000041,2012-04-04T14:21:42.30000,41.818000,79.689000,1.000,mb,4.40
20120404_0000038,2012-04-04T14:18:37.00000,39.342000,41.044000,14.400,ML,4.30
20120404_0000039,2012-04-04T14:08:46.00000,38.017000,37.736000,7.000,ML,3.00