US data only?

[statisfactions]

Is the data provided US only? If so, can that be made more clear in the documentation?

After spending several hours setting up and figuring out this package I found a pretty narrow range of lat/long available when I was trying to download data for Jakarta. Maybe it's obvious to some people that this is just US data (because it's from USGS) but I had to infer it after actually using the package for a while.