MCG said:
Plenty of U-Boat activity in Canadian waters, but the only submarine attack on Canadian soil was an ineffective bombardment of a lighthouse by a Japanese vessel on the West Coast.
For a ref, try this: http://www.amazon.com/Military-History-Canada-Desmond-Morton/dp/0771065140
History Lesson Boys and Girls:
Known:
1) Dec 18,1941: Japanese submarine I-25 fires 10 deck gun shots at L.P. St. Clair, who shelters in mouth of the Columbia River.
2) Dec 18,1941: Japanese submarine I-17 torpodes and damages SS Samoa off Cape Medocino, Calforinia
3) Dec 20, 1941: Japanese submarine I-17 shells and sinks the tanker Emido
4) Dec 20, 1941: Japanese submarine I-23 shells Tanker Agiworld, then I-23 shells and disables small gunboat off Monterey Bay
5) Dec 20, 1941: Japanese submarine 1-15 rammed by garbadge scow off Okland California
6) Dec ?, 1941: Japanese submarine I-9 chases Tanker Idaho off Oregon Coast
7) Dec 22, 1941: Japanese submarine I-21 unsuccessful attack on Tanker HM Story
8) Dec 23, 1941: Japanese submarine I-21 sinks Tanker Montebello
9) Dec 24, 1941: Japanese submarine I-9 attempt to sink lumber carrier Barbara Olson
10) Dec 24,1941: Japanese submarine I-19 fires two torpedos at freighter Absoroka, one strikes but lumber cargo keeps freighter afloat.
11) Dec 29, 1941: RCN reports "Japanese submarine" 10 miles from Victoria (possible I-26).Stranraer flying boat hits trees on take from Ucluelet, four killed.
12) Jan 1, 1942: HMCS Outrade attacks and damages a "submarine " off the north end of Vancouver Island
13) January 17, 1942: 6 pounder on Odden Point opens fire on a "Japanese submarine"
14) January 17, 1942: US Army Aircraft report camouflaged surfaced "submarine" off west coast of Vancouer Island.
15) Feb ? 1942: Japanese Glen performs reconanise flight over Prince Rupert. Coal Harbour also subjected to overflights as early as Jan. 1942
16) Feb 24, 1942: Japanese submarine I-17 starts "Battle of Los Angeles"
17) June 7/8, 1942: Japanese submarine I-26 sinks the SS Coastal Trader of the mouth of the Straits of Juan De Fuca
18) June 14, 1942: unidentified submarine sinks frieghter Ocean Vengance off the mouth of the Strait of Juan De Fuca, RCN patrol boat from Port Renfrew attacks submarine.
19) June 20th, 1942: Japanese submarine I-26 attacks/shells light house at Estevan Point.( aircraft at Patricia Bay crashes blocking runway, HMCS Santa Marie, HMCS San Tomas respond)
20) June 19/20, 1942: Japanese Submarine I-25 attacks SS Fort Camosun off Vancouver Island.
21) July 9, 1942: Bolingbroke #9118 helps sink a "Japanese submarine" with two US Coast Guard vessels in assistance off the British Columbia coast.
22) July 30, 1942: Japanese submarine I-26 attacks and sinks Soviet submarine IL-6 in the Stait of Juan De Fuca
23) August 23, 1942: the crew of a Stranarer Flying boat is loast in action against a Japanese submarine 49'47N,130'30W off Vancouver Island
24) Sept 9, 1942: Japanese submarine I-25 launches Glen seaplane on first "fire bomb" raid off Cape Blanco.
25) Marc 1943: Japanese submarines I-34, I-35, modified to launch "fire balloons" from 620 miles off US/Canada Coast.
26) March 1943: FV Oslo finds overturned "Glen seaplane(Yokosuka E14Y1)" off 15 miles off Juan De Fuca, attempts to tow into harbour, rough seas causes plane to sink
27) Various crashes until end of war contribute to losses of RCAF crews
;D
Edit to add:
"Dr. Delgado,
I am wondering about a Japanese submarine wreck off the Oregon Coast, specically Cape Kiwanda. Has anyone confirmed that this was in fact a Japanese submarine. My reference for this is Bert Webber's "Silent Seige" pg. 357. Thank you very much
Alec"
"Dear Alec:
The story keeps cropping up, but no one has been down, located the wreck and come up with photos - it does not mean it isn't there, but for now, it remains in the dubious category. The principal activity by I-boats and a few RO-class submarines of the Imperial Japanese Navy on the Pacific Coast is well documented, and other than the Aleutians losses (such as Ro-65) there are none thought to have happened on the North American mainland...but you never know.
James Delgado"
VP