Thought I'd add to this. I just crawled under my Accord to change the oil. Driveway covered in somewhat fresh oil spots. Oil filter (Fram TG 7317,first Fram I'v ever used on this car) covered in oil, appearing to originate from that very same seam that Chris observed. I got a flashlight and inspected everything and there's no other source for any oil leakage. Everywhere else on the engine is bone dry. Filter was not double gasket applied,was on good and tight,and no can damage. I have right at 3000 miles on this oil change.
Not wanting to take any chances, the TG I just bought is going back,and being replaced by a Honda oem.