Running examples in 'IRISSeismic-Ex.R' failed
The error most likely occurred in:

> ### Name: getAvailability
> ### Title: Retrieve Channel metadata from IRIS DMC
> ### Aliases: getAvailability
> ###   getAvailability,IrisClient,character,character,character,character,POSIXct,POSIXct,logical-method
> ###   getAvailability,IrisClient,character,character,character,character,POSIXct,POSIXct,missing-method
> ### Keywords: webservices
> 
> ### ** Examples
> 
> # Open a connection to IRIS DMC webservices
> iris <- new("IrisClient")
> 
> # Date of Nisqually quake
> starttime <- as.POSIXct("2001-02-28",tz="GMT")
> endtime <- starttime + 2*24*3600
> 
> # Use  getEvent web service to retrieve events in this time period
> events <- getEvent(iris,starttime,endtime,6.0)
> events
     eventId                time latitude longitude  depth author cCatalog
4 usp000aake 2001-02-28 12:30:14  -21.986  170.2070 10.000     us       us
3 usp000aakj 2001-02-28 13:05:31  -22.002  170.1080 10.000     us       us
2 usp000aam7 2001-02-28 18:50:13   13.283  -88.8270 65.300     us       us
1 uw10530748 2001-02-28 18:54:32   47.149 -122.7267 51.798     uw       uw
  contributor contributorId magType magnitude magAuthor
4          us    usp000aake     mwc       6.7       hrv
3          us    usp000aakj     mwc       6.3       hrv
2          us    usp000aam7     mwb       6.1        us
1          uw    uw10530748      md       6.8        uw
                 eventLocationName
4 southeast of the Loyalty Islands
3 southeast of the Loyalty Islands
2                      El Salvador
1   Puget Sound region, Washington
> 
> # biggest event is Nisqually
> eIndex <- which(events$magnitude == max(events$magnitude))
> e <- events[eIndex[1],]
> 
> # Find all BHZ channels collecting data at the time of the quake and within 
> # 5 degrees of the quake epicenter
> channels <- getAvailability(iris,"*","*","*","BHZ",starttime,endtime,
+                             lat=e$latitude,long=e$longitude,maxradius=5)
Error in getAvailability.IrisClient(obj, network, station, location, channel,  : 
  getAvailability.IrisClient: Error : Internal Server Error

 http://service.iris.edu/fdsnws/station/1/query?net=*&sta=*&loc=*&cha=BHZ&starttime=2001-02-28T00:00:00&endtime=2001-03-02T00:00:00&includerestricted=false&format=text&latitude=47.149&longitude=-122.7266667&maxradius=5&includeavailability=true&matchtimeseries=true&level=channel
Calls: getAvailability -> getAvailability -> getAvailability.IrisClient
Execution halted