Hmsm Poseidon Wreck

Field Value
Wreck Category non-dangerous wreck
Hmsm poseidon Wreck Location
Marine Coordinates (DMM) 		37 50.25 N,122 14.25 E
Latitude, Longitude
Decimal Degrees
  • Latitude: 37.837500
  • Longitude: 122.237500
Water Depth 32 m
Water Level Effect always under water/submerged
Vertical Datum Approximate Lowest Astronomical Tide
Name HMSM POSEIDON
Type submarine
Flag GB
Length 79.2 m
Width 9.1 m
Tonnage 1475
Tonnage Type displacement
Conspic Visual not visually conspicuous
Conspic Radar not radar conspicuous
Date Sunk Jun 9, 1931
Bottom Texture Mud
Original Detection Year 1931
Original Source naval vessel
Last Amended Date Dec 18, 2009

Simplified Wreck Survey

HMSM Poseidon shipwreck located at coordinates 37 50.25 N, 122 14.25 E with a least depth of 77 feet over the top of the periscope in a general depth of 117 feet surveyed on July 11 1931

Surveying Details

H4946/31 11.7.31 H4946/31 11.7.31 SUNK IN 375015N, 1221415E, FIXED BY HSA & GYRO, AND CHECKED BY STAR SIGHT. LEAST DEPTH OVER WK 77FT, TOP OF PERISCOPE, IN GEN DEPTH 117FT, AT LW 11.6.31. NOT DANGEROUS TO NAVIGATION. (HMS MEDWAY, HN 22.6.31). H5701/31 H5701/31 NOT TO BE SHOWN ON BRITISH CHARTS. H7383/33 13.12.33 H7383/33 13.12.33 INS NDW 'POSEIDON' ON NC F 011 ONLY. (HYDROGRAPHER'S DECISION).

Circumstances of loss

SANK FOLLOWING A COLLISION WITH CHINESE SS YUTA OFF WEI HAI WEI. (BENEATH THE WAVES).

WRECK MAP LOADING ... 37 50.25 N,122 14.25 E
Hmsm Poseidon on Wreck Map Hmsm Poseidon Wreck on Google Map

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FAQ

Where is the HMSM POSEIDON wreck located?

The HMSM POSEIDON wreck is located at coordinates 37 50.25 N,122 14.25 E.

How deep is the seabed around the HMSM POSEIDON?

The seabed around the HMSM POSEIDON lies at approximately 32 meters deep.

When did the HMSM POSEIDON sink?

The HMSM POSEIDON sank on Jun 9, 1931.

When was the wreck of the HMSM POSEIDON discovered?

The wreck of the HMSM POSEIDON was discovered in 1931.

What country did the HMSM POSEIDON belong to?

The HMSM POSEIDON belonged to GB.

What was the tonnage of the HMSM POSEIDON?

The HMSM POSEIDON had a tonnage of 1475 tons.

What type of wreck is the HMSM POSEIDON?

The HMSM POSEIDON is classified as a submarine.

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