By their nature and purpose Raspberry Shake stations are designed for portability. They are small and relatively cheap to purchase - but provide excellent seismic monitoring ability. Consequently it is found that a particular station may migrate around depending on where the owner moves, or decides to put it; and this mah happen many times over a short period of time.
This makes it difficult to manually maintain the Seismogram Download Map in the most recent condition. If a station owner decides to relocate a station, then the station name and location on the map will not be directed to the new location, which will result in any request to the old station being unresponsive, or the station location may be incorrect. Consequently the Raspberry Shake markers on the map are populated by software accessing the current FDSN Federation Catalogue (fedcat) for the Raspberry Shake stations.
The Raspberry Shake stations shown on the map have been downloaded from the Raspberry Shake FDSNWS web server and used to automatically populate the map. Only stations from the Australian/New Zealand/Indonesian. PNG regions have been downloaded to limit the computing power required and produce an acceptable processing time.
Even having the map populated automatically does not guarantee that any particular Raspberry Shake station that ends up on the map will produce data for the date and time you specify. It may be that the station has been taken off-line and the FDSN station registration hasn't been updated at the time the population took place - or it may be that the station was simply off-line at the date and time you have specified.
Because of the station naming convention adopted by the Raspberry Shake controlling body, when a station is moved from one place to another, it keeps the same name!!! The StationCode is generated automatically by using the last 4 digits of the Raspberry Pi computer's unique hardware address (the "MAC" address) and appending them to the letter 'R'. For a particular seismograph this name is not likly to change throughout the lifetime of the seismograph. Consequently, when you download data for a particular station, you need to check where that station is or was located at the particular time that the data was generated. You cannot assume that the station will always be in the one location. In particular you cannot assume that when the data that you download was originally generated the station was in the same location that it is shown at on the map at the time you performed the download!
If you want to download data from other stations in the world, from stations that may not currently be operating (historical station), or from a station that was previously located elsewhere, you can get a full listing of all Raspberry Shake stations from the FDSN Network Coded web site. Once you know what station you are interested in, and the date and times that they were in operation, you can use the Raspberry Shake query builder to download the seismogram data.