Canada players were hailed for "showing the true value of the game" after assisting with the clean-up operation in Kamaishi.
With both teams already eliminated, Tonga bowed out on a winning note by scoring four tries to USA's three in Higashiosaka on Sunday.
Sunday's Pool A fixture in Yokohama was under threat of cancellation due to the severe storm, but it will take place.
Typhoon Hagibis has caused the cancellation of another Rugby World Cup fixture, with Namibia and Canada's contest no longer going ahead.
Joe Schmidt is not optimistic Bundee Aki will avoid a ban but Samoa coach Steve Jackson wants a judiciary to "see some sense".
Ireland head coach Joe Schmidt said it was "hard to argue" with Bundee Aki's red card but was keen to see the incident again.
Ireland will face New Zealand or South Africa in a Rugby World Cup quarter-final after hammering Samoa despite Bundee Aki's red card.
Shaun Edwards is optimistic Jonathan Davies will be fit for Wales in next weekend's quarter-final.
Typhoon Hagibis continues to cast doubt over Scotland's crucial Rugby World Cup game against Japan.
It has been a case of the storm before the storm in Japan, where Typhoon Hagibis is threatening to derail Scotland's Rugby World Cup.
Kurtley Beale played just 13 minutes of Australia's win over Georgia, but Michael Cheika says his head injury is not serious.
Struggling Canada are wary of another tournament defeat as Namibia bid to end a 22-game, 20-year Rugby World Cup losing streak.
Wales head coach Warren Gatland declared "the door is not shut" for quarter-final selection ahead of their last Pool D game.
If the weather holds up in Osaka, Siale Piutau will hope to celebrate his birthday with a record-breaking appearance for Tonga against USA.
Scottish Rugby is weighing up taking legal action to make sure the game with Japan goes ahead, but World Rugby has hit back.
Australia were a long way from their best in tough conditions, but two late tries gave them a bonus-point win in their last Pool...
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