Hey there!
What a great question. I’m afraid that importing events by geolocation isn’t a support feature in Facebook Events, but I thought I would at least share a screenshot of the plugin’s import settings to give you a good idea of what options are available.
In general, the plugin allows you to specify a public Facebook page and determine whether you would like to import events automatically on a scheduled basis, or manually one at a time.
Does this help answer your question? Please let me know and thanks so much for reaching out.
Thanks,
Geoff