the parameters for that particular shot were: 6 seconds, f/8.0 @ 27mm. the EXIF embedded in the image are from the data of the template I use for the framing, so it is not accurate.
here is another example of a night shot (some old shots of my TL) where I didnt use strobes but just ambient moon lighting and background lighting:
i currently dont have the correct EXIF data (its embedded in the RAW file), as if you check the EXIF on these they would all be the same. iirc they are shot in the neighborhood of about 8 seconds at f/8 as well, ISO 100.