Hi Obspy users,
I am attempting to read a bunch of EVT files written by a Kinemetrics Etna strong-motion accelerometer. The read fails because of some problem with a header value–see output below. What is a Tag value, and why it might be “bad”? (This is the first time I’ve encountered EVT data and I’m unfamiliar with the format.)
Thanks,
Emily Wolin
from obspy import read
st = read(‘AT001.EVT’)
Traceback (most recent call last):
File “”, line 1, in
File “”, line 2, in read
File “/Users/ewolin/anaconda3/lib/python3.6/site-packages/obspy/core/util/decorator.py”, line 298, in _map_example_filename
return func(*args, **kwargs)
File “/Users/ewolin/anaconda3/lib/python3.6/site-packages/obspy/core/stream.py”, line 230, in read
st.extend(_read(file, format, headonly, **kwargs).traces)
File “”, line 2, in _read
File “/Users/ewolin/anaconda3/lib/python3.6/site-packages/obspy/core/util/decorator.py”, line 208, in uncompress_file
result = func(filename, *args, **kwargs)
File “/Users/ewolin/anaconda3/lib/python3.6/site-packages/obspy/core/stream.py”, line 272, in _read
headonly=headonly, **kwargs)
File “/Users/ewolin/anaconda3/lib/python3.6/site-packages/obspy/core/util/base.py”, line 462, in _read_from_plugin
list_obj = read_format(filename, **kwargs)
File “/Users/ewolin/anaconda3/lib/python3.6/site-packages/obspy/io/kinemetrics/core.py”, line 73, in read_evt
stream = evt_obj.read_file(filename_or_object)
File “/Users/ewolin/anaconda3/lib/python3.6/site-packages/obspy/io/kinemetrics/evt.py”, line 114, in read_file
self.e_tag.read(file_pointer)
File “/Users/ewolin/anaconda3/lib/python3.6/site-packages/obspy/io/kinemetrics/evt.py”, line 414, in read
raise EvtBadHeaderError(“Bad Tag values”)
obspy.io.kinemetrics.evt_base.EvtBadHeaderError: Bad Tag values