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

Matt W. maw269 at gmail.com
Wed Aug 27 19:53:02 UTC 2014


Hi Bruce,

Thank you very much for tracking this down for me and for the excellent
explanation on what was ocurring. We have modified our end to prepare for
both names.
As a related question, is there a difference between mi (macroseismic
intensity) and mmi (modified mercalli intensity)? Is mmi a subset of mi?

Many Thanks,
Matt


On Wed, Aug 27, 2014 at 3:24 PM, C. Bruce Worden <cbworden at usgs.gov> wrote:

> Hi Matt,
>
> I've discussed this with the NC operations personnel and they're changing
> from 'mmi' to 'mi' in the shape.zip file, effective more or less
> immediately. Note that the change will only be going forward, so the mmi
> filenames will persist in the shape.zip archives of older events until and
> unless those events are reprocessed.
>
> The reason for the difference in names was that NC needed to support
> another piece of software that required 'mmi' rather than 'mi'. Eventually
> that software was updated, but the naming convention persisted. Since other
> networks use that same software, you should be prepared to see either 'mmi'
> or 'mi' in their shape files.
>
> 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
>>
>>
>> _______________________________________________
>> Realtime-feed-users mailing list
>> Realtime-feed-users at geohazards.usgs.gov
>> https://geohazards.usgs.gov/mailman/listinfo/realtime-feed-users
>>
>>
>
>
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