Vortex

The Vortexes are miniature black holes. They are quieted by Amber 31422, which is why they call it the Amber Quarantine. There are a few that have been shown.

Central Manhatan Sinkhole - Date Unknown

East River Vortex - Dec. 1990

Both shown in "Amber 31422"

Amber Quarantine

Quarantine Sites:

Harvard Yard-Oct 17, 1989 (Source Walter Bishop (Red) , Episode "Amber 31422")

Franklin Street

Observer Sighting - 3x07 - The Abducted

Observer Sighting - 3x04 - Do Shapeshifters Dream of Electric Sheep?

Observer Sighting - 3x03 - The Plateau

Observer Sighting - 3x02 - The Box

Observer Sighting - 3x01 - Olivia