Resource at http://service.iris.edu/
http://service.iris.edu/fdsnws/dataselect/1/

Resource at https://earthquakescanada.nrcan.gc.ca/
https://earthquakescanada.nrcan.gc.ca/fdsnws/dataselect/1/

Resource at https://service.ncedc.org/
https://service.ncedc.org/fdsnws/dataselect/1/