100% trans fluid loss in 5 seconds...

I own a 1995 Saturn SW2 Wagon with a 1.9 DOHC. Auto Transmission. just a block away after leaving home 100% of all the trans fluid abruptly dumped out while driving. I nursed it 1/4 mile back home. By the time I hit my driveway all transmission function was lost and had to push it in the garage. It's such a fluid mess I can't even tell where this massive leak area is at.

Before this not even a drop of Trans fluid was ever leaking from this car. (this car has a canister type trans filter.) 2 months ago, just to be safe I drained the old fluid, and even bought a new identical OEM canister trans filter. This new filter matches perfect and I used the manufacturer recommended Dextron2 Fluid to fill and check perfect level at idle. I even changed the small drain plug gasket and tightened to specified drain plug torque setting. It's not leaking from the drain plug.
I think I can rule out any pan or trans gaskets because they would not dump trans fluid that fast. Maybe a failure with the rubber gasket on the new trans canister filter? Or could it be a catastrophic immediate failure of the drive axel seal? I've never in my life seen a car lose trans fluid that fast and that sudden. I guess I need to full back up, clean everything then get under and watch for the exact area of massive leakage. It's lost all trans fluid so fast. On the short 1/4 mile back home the trans started slipping REALLY bad. I caught it fast, but do you think a 1/4 mile zero fluid drive back home might have damaged the transmission?

Car only has 112,000 miles on it and always well maintained. All original car,single owner. Very disappointing because although it's a 95 it seriously runs and looks brand new. I'm worried I have a serious problem now. Any ideas on what could cause such a rapid loss of Trans fluid?