Georgetown played without sophomore forward Greg Whittington, who missed the game for a violation of team rules. No details were provided.
The 6-foot-8 Whittington had started all 13 games and is second on the team in scoring (12.1) and rebounding (7.0).
“Certain people had to step up to carry the load,” Porter said. “It’s a team effort.”
When Thompson was asked whether Whittington would be back for the next game he said, “I can’t tell you right now.”
Georgetown avoided its first 0-3 start in the conference since 1998-99.
It was the Hoyas’ fourth straight win in the series and the 10th in the last 13 games. The teams play again Feb. 2 in Washington.
It was the fewest points St. John’s scored in a half this season and it was the biggest halftime deficit the Red Storm faced this season.
Chris Obekpa’s six blocks gave him 82 for the season, breaking the tie with Walter Berry for the St. John’s season record of 76.