Thera ? Wreck

Field Value
Wreck Category distributed remains of wreck
Status historic
Thera ? Wreck Location
Marine Coordinates (DMM) 		39 21.035 N,22 56.669 E
Latitude, Longitude
Decimal Degrees
  • Latitude: 39.350583
  • Longitude: 22.944483
Wreck Depth 10.1 m
Water Depth 12 m
Water Level Effect always under water/submerged
Vertical Datum Lowest Low Water
Name THERA ?
Type steam ship
Flag GR
Tonnage 1599
Tonnage Type gross
Cargo general and mixed goods
Conspic Visual not visually conspicuous
Conspic Radar not radar conspicuous
Date Sunk Dec 22, 1946
Original Detection Year 1946
Last Detection Year 2025
Original Source other
Surveying Details H8406/46 9.1.47 DW EXISTS IN POSN 114DEGS 1.25C FROM VOLO S BREAKWATER LT [392105N, 225635E APPROX]. (C IN C MED & NAVEAM NO 1456). - NM 40/47. H4232/47 9.8.47 WK NOW ST IN POSN; BOW 123DEGS 0.9C, STERN 130DEGS 1.35C FROM S BREAKWATER LT, LIMIN VOLOU, MARKED BY CONL BUOY CLOSE SE. (ATHENS NM 88/47). - NM 1813/47. H4232/47 5.1.49 WK NOW WITH LEAST DEPTH 1.5FMS IN POSN 131DEGS 1.68C FROM S BREAKWATER LT, MARKED BY R CONL BUOY CLOSE E. (GREEK NM 229/48). - NM 2822/48. 1.12.51 DW (MAST) SHOWN IN 392100N, 225630E ON GREEK CHART. NE 1196. H4232/47 29.1.54 WK, WITH LEAST DEPTH 1FM 5FT IN POSN 125DEGS 1.7C FROM S BREAKWATER LT, MARKED BY R CONL BUOY CLOSE E. (ATHENS NM 254/53). - NM 323/54. H4232/47 15.5.56 BUOY MISSING. (GREEK NM 59(T)/56). NCA. H4232/47 30.5.56 BUOY REPLACED. (GREEK NM 85/56). NCA. H4232/47 27.8.58 SALVAGE REPORTED TO BE IN PROGRESS. (HAMBURG NM 2247/58). NCA. H3686/65 27.1.66 SHOWN AS FOUL ON GREEK 246. H3686/65 11.4.67 FOUL IN 392101N, 225630E. (GREEK NM 117/66). BR STD. H2933/66 25.10.67 WK, WITH LEAST DEPTH 1FMS 5FT, IN 392058N, 225633E, MARKED BY R CONL BUOY CLOSE E & CONL BUOY CLOSE SW. (GREEK NM 33/67). BR STD. H4554/72 16.11.72 POSN NOW FOUL, BUOY REMOVED. (BNA ATHENS HN 6/72). - NM 2203/72. H4554/72 10.5.73 REPD THAT WK & WK BUOY STILL EXIST. NOT INTENDED TO REMOVE BUOY. (MV WILLY SMITS & NL HYDRO LETTER, DTD 27.4.73). H4554/72 6.6.73 WK BUOY NOT SIGHTED, LETTER SENT TO GREEK NAVAL HQ FOR CONFIRMATION. (BNA ATHENS LETTER, DTD 22.5.73). H4554/72 18.6.73 WK CLEARED TO 12MTRS, BUOY REPLACED AS AREA IS STILL FOUL FOR ANCHORING. (BNA ATHENS 11.6.73). - NM 1263/73. H4554/72 9.1.78 FOUL 6.2MTRS SHOWN IN 392106N, 225642.5E [EUR] OR IN POSN 129DEGS 332MTRS FROM BREAKWATER LT [392106N, 225624E APPROX], MARKED BY CONL BUOY CLOSE E, ON GREEK 246/1 [1976 EDN]. - NM 179/78 (MISSED SCALE 1556). H4554/72 3.12.82 FOUL, NOW WITH LEAST DEPTH 9.2MTRS, IN 392106N, 225642.5E [EUR], BUOY REMOVED. (GREEK NM 222/82). - NM BLOCK 495/83. 10.3.93 SHOWN AS F 9.2MTRS IN 392103N, 225643E [EUR] ON GREEK 312. NC 1556. 11.4.95 SHOWN AS F 9.2MTRS IN 392105.5N, 225642.5E ON GREEK 246/1. NC 1571. HH382/450/02 3.4.97 DELETED. (GREEK NM 12/304/96). - NM 1145/97. 29.9.03 DATA RE-ASSESSED BY CB. CHART AS FOUL 10.2MTRS. (GREEK NM 12/304/96). - NM 4737/03.
Last Amended Date Aug 21, 2025
Limits

Circumstances of loss

LOST AS RESULT OF MINE/UNDERWATER EXPLOSION OUTSIDE VOLO BREAKWATER. CARGO INCLUDED LORRIES, FLOUR, WIRE & PROVISIONS.

General Comments

UK NM 4952/23

Limits: features shown as areas and not points

WRECK MAP LOADING ... 39 21.035 N,22 56.669 E
Thera ? on Wreck Map Thera ? Wreck on Google Map

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FAQ

Where is the THERA ? wreck located?

The THERA ? wreck is located at coordinates 39 21.035 N,22 56.669 E.

How deep is the THERA ? and where exactly is it located?

The THERA ? lies at a depth of about 10.1 meters and is located at coordinates 39 21.035 N,22 56.669 E.

How deep is the seabed around the THERA ??

The seabed around the THERA ? lies at approximately 12 meters deep.

When did the THERA ? sink?

The THERA ? sank on Dec 22, 1946.

When was the wreck of the THERA ? discovered?

The wreck of the THERA ? was discovered in 1946.

What country did the THERA ? belong to?

The THERA ? belonged to GR.

What cargo was the THERA ? carrying?

The THERA ? was carrying general and mixed goods.

What was the tonnage of the THERA ??

The THERA ? had a tonnage of 1599 tons.

What type of wreck is the THERA ??

The THERA ? is classified as a steam ship.

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