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

Topics: FDSN Working Group III

Glenn Thompson

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

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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Jeremy Fee

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

2016-07-21 21:31:18

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/)

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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/