[Realtime-feed-users] USGS Earthquake Realtime Feed shape.zip Content Labels

[C. Bruce Worden]

This is a somewhat tricky situation. We have been in a transition, moving from files named "mmi" to ones named "mi" (for the more generic "macroseismic intensity") because not everyone in the world uses MMI as their intensity measure. The metadata is somewhat out of date -- I've made the change, but it may take a while for it to percolate down to the regional seismic networks (who produce their own ShakeMaps). 

The default naming convention in the ShakeMap software is to use "mi" in the shape files, but the RSNs can do whatever they want, and for some reason NC is using "mmi". I'll send them an email, but I don't know if or when they'll make the change.

Unfortunately, the only solution when using products from different networks is to make your automated systems aware of their conventions and assume they'll continue to use them and eventually (hopefully) switch to ours.

Bruce


On Aug 25, 2014, at 11:49 AM, "Fee, Jeremy" <jmfee at usgs.gov> wrote:

> Hi Matt,
> 
> This looks like a difference between "us" and "nc" ShakeMap providers.  I've cc'ed Bruce Worden who can look into this issue and respond.
> 
> 
> Thanks,
> 
> Jeremy
> 
> 
> On Mon, Aug 25, 2014 at 12:16 PM, Matt W. <maw269 at gmail.com> wrote:
> We rely on the USGS Earthquake Realtime Feed (GeoJSON).
> 
> We have found an inconstancy in one of your latest products.
> 
> If you download the shape.zip from:
> M6.9  - 43km ENE of Tambo, Peru
> http://earthquake.usgs.gov/earthquakes/feed/v1.0/detail/usb000s5x1.geojson
> 
> Then
> http://earthquake.usgs.gov/product/shakemap/usb000s5x1/us/1408925670763/download/shape.zip
> 
> The Intensity dbf file is named: mi.dbf
> ______________________________
> If you download the shape.zip from:
> M 6.0 - 6km NW of American Canyon, California
> http://earthquake.usgs.gov/earthquakes/feed/v1.0/detail/nc72282711.geojson
> 
> Then
> http://earthquake.usgs.gov/product/shakemap/nc72282711/nc/1408983729833/download/shape.zip
> 
> The Intesity dbf file is named: mmi.dbf
> 
> This has caused issues in our use of the feed.
> 
> In this file:
> http://earthquake.usgs.gov/product/shakemap/usb000s5x1/us/1408925670763/download/metadata.txt
> 
> The description states the dbf should be named mmi.dbf :
> "    Detailed_Description:
>       Entity_Type: 
>         Entity_Type_Label: mmi.dbf (shapefile from "shape.zip" download file)
>         Entity_Type_Definition: Polygons of estimated instrumental intensity
>         Entity_Type_Definition_Source: ESRI Shapefile Technical Description "
> 
> However, we have found the normal name of the file is mi.dbf
> As in this post: https://geohazards.usgs.gov/pipermail/shake-dev/2011-June/000368.html
> 
> What is the standard name of the mi.dbf (mmi.dbf) located in the shape.zip and what should we be expecting?
> Can you please explain why the recent California earthquake had a mmi.dbf file as opposed to a mi.dbf file?
> 
> Thanks,
> 
> Matt
> 
> 
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