Thread: missing 2004 waveform data for MCQ

Started: 2021-08-19 14:45:19
Last activity: 2021-08-19 14:45:19
Sandra Bourguignon
2021-08-19 14:45:19
Hi,

1- I am trying to access waveform data from station AU.MCQ, which was
the closest to the 2004-12-23T14:59:04 M8.2 Macquarie Island earthquake.
According to your website, the station was opened in June 2004, but data
availability is from 2005-01-11 (see below):

curl -o MCQ_availability.txt
'http://service.iris.edu/fdsnws/availability/1/extent?net=AU&sta=MCQ&start=2004-01-01&end=2005-12-24&format=text&includerestricted=true&nodata=404'


#Network Station Location Channel Quality SampleRate Earliest Latest
Updated TimeSpans Restriction
AU MCQ -- BHZ M 20.0 2005-01-11T13:41:40.000000Z
2005-12-24T00:00:00.000000Z 2017-06-15T22:55:35Z 1192 OPEN

2- My waveform data requests have all returned code 404 for "no data":

curl -o test.ms
'http://service.iris.edu/fdsnws/dataselect/1/query?net=AU&sta=MCQ&loc=*&cha=BHZ&start=2004-12-23&end=2004-12-24'.

3- However, the ISC-EHB catalogue has time picks at MCQ for the
Macquarie earthquake and the other earthquakes in that sequence.

4- Where can i obtain the waveform data? Are you able to provide a
reason while data previous to 2005-01-11 at MCQ aren't available?

kind regards

Sandra

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  • Adam Clark (Legacy)
    2021-08-19 12:39:54
    Hi Sandra,

    My guess is that the earlier data was packaged up some other way, that wasn't easily recoverable into a full archive. (If data got packaged into some event-based datasets, for example, that would only represent a few tiny slices of the full data.)

    If the data is available in some other form, the place to start would be the network operator (listed at https://fdsn.org/networks/detail/AU/), in this case Geoscience Australia (https://www.ga.gov.au/).

    Cheers,
    Adam

    ----------------------
    Adam Clark
    Web Developer / Admin
    IRIS Data Management Center
    adam<at>iris.washington.edu



    On Aug 19, 2021, at 11:39 AM, Sandra Bourguignon (via IRIS) <data-request-help-bounce<at>lists.ds.iris.edu> wrote:

    Hi,

    1- I am trying to access waveform data from station AU.MCQ, which was
    the closest to the 2004-12-23T14:59:04 M8.2 Macquarie Island earthquake.
    According to your website, the station was opened in June 2004, but data
    availability is from 2005-01-11 (see below):

    curl -o MCQ_availability.txt
    'http://service.iris.edu/fdsnws/availability/1/extent?net=AU&sta=MCQ&start=2004-01-01&end=2005-12-24&format=text&includerestricted=true&nodata=404'


    #Network Station Location Channel Quality SampleRate Earliest Latest
    Updated TimeSpans Restriction
    AU MCQ -- BHZ M 20.0 2005-01-11T13:41:40.000000Z
    2005-12-24T00:00:00.000000Z 2017-06-15T22:55:35Z 1192 OPEN

    2- My waveform data requests have all returned code 404 for "no data":

    curl -o test.ms
    'http://service.iris.edu/fdsnws/dataselect/1/query?net=AU&sta=MCQ&loc=*&cha=BHZ&start=2004-12-23&end=2004-12-24'.

    3- However, the ISC-EHB catalogue has time picks at MCQ for the
    Macquarie earthquake and the other earthquakes in that sequence.

    4- Where can i obtain the waveform data? Are you able to provide a
    reason while data previous to 2005-01-11 at MCQ aren't available?

    kind regards

    Sandra

    Notice: This email and any attachments are confidential and may not be used, published or redistributed without the prior written consent of the Institute of Geological and Nuclear Sciences Limited (GNS Science). If received in error please destroy and immediately notify GNS Science. Do not copy or disclose the contents.


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