Scott Niedermayer started the play when he fired a shot that hit someone in front of the Canuck net. Moen picked up the rebound and beat Canuck goaltender Roberto Luongo with a short over his right shoulder.
It was a heartbreaking loss for the Canucks. The Ducks now lead the best-of-seven series 3-1. They can advance to the conference final with a win Thursday in Anaheim.
The Ducks forced the overtime by battling back from a 2-0 deficit with third-period goals from Chris Pronger and Teemu Selanne.
Selanne tied the game with 5:42 left when he corralled the rebound of a Pronger point shot and beat Luongo.
Pronger scored the Ducks first goal with a seeing-eye shot through a forest of players at 3:58 of the third period.
It looked like Brendan Morrison had iced the game for Vancouver when he scored late in the second period. His backhanded shot deflected off Anaheim’s Moen and past goaltender Jean-Sebastien Giguere.
Instead of migrating south the Ducks kept pressing. That forced the Canucks into scrambling around in their own end and making turnovers.
Luongo prevented the Ducks from winning in the third period when he stopped Selanne on a Anaheim power play, then got his glove on a loose puck just a whisker before Dustin Penner could reach it with his stick. In the second he got a leg on a Sami Pahlsson attempt.
Markus Naslund had the other Canuck goal. Defenceman Mattias Ohlund had two assists.
The Ducks trailed after 40 minutes but had controlled much of the play. Anaheim spent a lot of the second period in the Canuck end but some strong work by the Vancouver defence resulted in few pucks getting to the net.
The shots that did get through were scooped up by Luongo, who has been nominated for the Hart Trophy as league MVP, the Lester B. Pearson Award as outstanding player in the eyes of his peers, and the Vezina Trophy as top goalie.
The Canucks dodged a bullet in the second period. Vancouver was already killing a penalty when Josh Green was given four minutes for high-sticking Teemu Selanne. Vancouver was able to kill off the 33 seconds of being two men short, then caught a break when Anaheim was called for too many men on a line change.
It was only the fourth game of the series but it had a Game 7 atmosphere. The 18,630 towel-waving fans knew a loss meant it could be the final game of the season at GM Place.
Naslund opened the scoring at 12:55 of the first. Ohlund fired a shot from the point which Giguere blocked. With three Canucks crowding the net Naslund came up with the rebound and poked it home.
It was the third time in as many games Naslund had scored the Canucks’ first goal.
Vancouver defenceman Kevin Bieksa, who missed the first three games, returned to the lineup. Taking a seat on the Canuck injury bandwagon was gritty forward Jeff Cowan, who the team said underwent “minor knee surgery.” His place was taken by Nathan Smith.
Notes-The last Canuck to win an NHL award was Markus Naslund who won the Pearson in 2003. Pat Quinn was coach of the year in 1992. ….Other Canucks out with injuries are forwards Matt Cooke and Ryan Kesler plus defenceman Rory Fitzpatrick. … Anaheim brothers Scott and Rob Niedermayer will appear on The Tonight Show with Jay Leno on Wednesday. …canuck assistant GM Steve Tambellini is considered a candidate for the GM job in Phoenix.