[Realtime-feeds] Feed JSON field question

[Earle, Paul]

Matt,

California has more seismic stations and post automatic solutions. Most
other regions in the U.S. do not post automatics.

regards,
Paul


On Mon, Apr 14, 2014 at 5:13 PM, Matt Keller <mattrk at mattrk.com> wrote:

> Eric,
>
> That's exactly what I needed to know. Thanks for clearing that up.
>
> Out of curiosity, do you know why the data for areas outside of California
> is delayed up to 30 minutes while California data is posted within a just a
> few minutes? I understand that California has more earthquakes than
> anywhere else and needs faster notifications but i was just curious why
> this is from a technical side. Is this data prioritized somehow? Or are you
> simply polling that equipment more often?
>
> Thanks again.
>
>
> On Mon, Apr 14, 2014 at 9:06 AM, Martinez, Eric <emartinez at usgs.gov>wrote:
>
>> Hi Matt,
>>
>> The time field under features > properties corresponds to the *time at
>> which the earthquake occurred*.
>>
>> The updated field under features > properties corresponds to the time the
>> most recent update arrived. This can be driven by any preferred associated
>> product (for example, the arrival of a ShakeMap product can affect the
>> updated property).
>>
>> Updated earthquakes are *not* re-added to the past hour or past day
>> feeds. Each feed for a given time period contains earthquakes that occurred
>> within that time period. Subsequent updates to earthquake information do
>> not affect what earthquakes appear in the feeds.
>>
>> Regards,
>>
>> Eric Martinez
>> U.S. Geological Survey
>> emartinez at usgs.gov
>>
>>
>> On Fri, Apr 11, 2014 at 8:07 PM, Matt Keller <mattrk at mattrk.com> wrote:
>>
>>>  Does the time field under features > properties correspond to the time
>>> at which the earthquake occurred or the time at which the earthquake was
>>> posted to the feed? From what I've read, earthquakes that happen in other
>>> parts of the country (Not California) can be posted as much as 30 minutes
>>> after the fact. I'm wondering what the time stamp actually means.
>>>
>>> Additionally, are "updated" quakes re-added to the past hour or past day
>>> feeds if they are updated significantly later? E.g. When a quake that
>>> happened 26 hours ago is updated, Is that quake re-added to the past
>>> hour/past day feed? I would assume not, but i wanted to verify. I'm
>>> assuming that the data for that particular quake is simply updated and the
>>> "updated" field is just incremented.
>>>
>>> Thanks
>>>
>>> _______________________________________________
>>> Realtime-feeds mailing list
>>> Realtime-feeds at geohazards.usgs.gov
>>> https://geohazards.usgs.gov/mailman/listinfo/realtime-feeds
>>>
>>>
>>
>
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