International Federation of Digital Seismograph Networks

Thread: Re: fdsnws-event - add support for event type in query and text format

None
Started: 2016-07-22 04:13:13
Last activity: 2016-07-22 04:13:13
Slightly off topic perhaps but I am wondering why volcano-seismic event types are omitted? By this I mean some labels that identify events as volcano-tectonic, hybrid, long-period, and rockfall/pyroclastic flow. These are common to most volcano observatories. For example, I classified much of the Montserrat catalog (a 15 year eruption) and there were several tens of thousands of events in each of these categories, and much of the downstream automated and manual analysis relies on these categorizations.

On Jul 21, 2016, at 6:31 PM, Jeremy Fee <jmfee<at>usgs.gov> wrote:

Hello,

The USGS fdsnws-event web service already supports an "eventtype" parameter as an extension, and it is included in our extension output formats csv and geojson:
http://earthquake.usgs.gov/fdsnws/event/1/

I recommend using the actual quakeml values ("earthquake" instead of "Earthquake").


Thanks,

Jeremy


On Thu, Jul 21, 2016 at 11:23 AM, John Clinton <jclinton<at>sed.ethz.ch> wrote:
Dear FDSN WG III,

I would like to propose a change to fdsnws-event. Currently, there is very limited support for event type. This information is given in the quakeML XML output, but it is missing from the text output. Also, it would be very useful to be able to query catalogues by event type.

I know there is a long story about what is the correct nomenclature for event type, but quakeML1.2 supports the following event types as seen in
https://quake.ethz.ch/quakeml/docs/notes?action=AttachFile&do=view&target=quakeml-1.2-classdiag-AI.pdf

I would suggest if eventype is not specified in a query, the default would be ‘Earthquake’ (many of us offering fdsnws-event only support EventType=Earthquake anyway).

Is there any established procedure to manage changing versions of fdsnws? It hasn’t changed since 4/2013.

John



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  • Are you asking why those are omitted from the Quakeml spec, or from the
    USGS event web service?


    Thanks,

    Jeremy


    On Thu, Jul 21, 2016 at 2:13 PM, Glenn Thompson <thompsong<at>mail.usf.edu>
    wrote:

    Slightly off topic perhaps but I am wondering why volcano-seismic event
    types are omitted? By this I mean some labels that identify events as
    volcano-tectonic, hybrid, long-period, and rockfall/pyroclastic flow. These
    are common to most volcano observatories. For example, I classified much of
    the Montserrat catalog (a 15 year eruption) and there were several tens of
    thousands of events in each of these categories, and much of the downstream
    automated and manual analysis relies on these categorizations.

    On Jul 21, 2016, at 6:31 PM, Jeremy Fee <jmfee<at>usgs.gov> wrote:

    Hello,

    The USGS fdsnws-event web service already supports an "eventtype"
    parameter as an extension, and it is included in our extension output
    formats csv and geojson:

    http://earthquake.usgs.gov/fdsnws/event/1/


    I recommend using the actual quakeml values ("earthquake" instead of
    "Earthquake").


    Thanks,

    Jeremy


    On Thu, Jul 21, 2016 at 11:23 AM, John Clinton <jclinton<at>sed.ethz.ch>
    wrote:

    Dear FDSN WG III,

    I would like to propose a change to fdsnws-event. Currently, there is
    very limited support for event type. This information is given in the
    quakeML XML output, but it is missing from the text output. Also, it would
    be very useful to be able to query catalogues by event type.

    I know there is a long story about what is the correct nomenclature for
    event type, but quakeML1.2 supports the following event types as seen in

    https://quake.ethz.ch/quakeml/docs/notes?action=AttachFile&do=view&target=quakeml-1.2-classdiag-AI.pdf

    I would suggest if eventype is not specified in a query, the default
    would be ‘Earthquake’ (many of us offering fdsnws-event only support
    EventType=Earthquake anyway).

    Is there any established procedure to manage changing versions of fdsnws?
    It hasn’t changed since 4/2013.

    John



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    http://www.fdsn.org/message-center/topic/fdsn-wg3-products/)

    Sent via IRIS Message Center (http://www.fdsn.org/message-center/)
    Update subscription preferences at http://www.fdsn.org/account/profile/



    ----------------------
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    http://www.fdsn.org/message-center/topic/fdsn-wg3-products/)

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    Update subscription preferences at http://www.fdsn.org/account/profile/