＜Amended partly in April 2023＞

Anchorages in Keihin Port (Yokohama-Ku and Kawasaki-Ku)

Captain of the port, KEIHIN

Vessels anchoring in the above anchorages are requested to comply with the following anchorage classiﬁcation and remarks
KawasaWhere: Within a 2-nautical mile radius of the "Tokyo Gas & JERA Ogishima LNG Berth" and "Minami-Honmoku Hama Road."(Excluding navigation routes and some sea areas)ki Passa

The Sea Area for the Reinforcing
Anti-Dragging-Anchor Measures

(c)
(a)

(d)

uTs(b)(a)rusas
iPm(b)JERA Ogishima
LNG Berth(c)YK1(a)

Tokyo Gas Ogishima
LNG Bertheag

YK2

YK3

hamaY1(a)PassY2(a)

(b)

ko(e)

em

Li(d)
(a)

(e)
(b)

(c)

Sea-Berth(d)
(c)

(a)

● The Recommendations on Voluntary Refraining-from-Anchoring (To vessels with high freeboard or with a load factor of 10% or less)

When: When a strong wind zone is expected to arrive (when a typhoon hits), or when a wind speed of 20 m/s or more is expected (otherthan when a typhoon hits).
Outline【Recommendations】: ① do not anchor in the Anchoring Restricted Areas; and② for Vessels anchored in the Sea Area for the Reinforcing Anti-Dragging-Anchor Measures, leave the area.
【Orders】If a ship captain does not follow the recommendations ① or ②, an order shall be issued to leave the Sea Area for theReinforcing Anti-Dragging-Anchor Measures.

(e)(a)
chAnti-Dragging-Anchor Measures

(c)

(b)

YL4(e)(a)ricted(f)Anchorages for Large-sized Vessels(d)Anchorages for Vessels except for VLCCs, etc.
: KL,YL3,YL4,& YL5(c)Anchorages for Smalland Medium-sized Vessels

(d)
(b)

(a)

YL5

N1(c)
(d)

(b)
(e)

(c)
(d)
(e)
(f)

N4

N3

Name ofAnchorage

KLFor Large-sized Vessels(except for VLCCs, etc.)

An area bounded by a line joining the following positions(a) 35° 27′ 03″ Ｎ 139° 45′ 02″ E(b) 35° 28′ 33″ Ｎ 139° 47′ 28″ E(c) 35° 27′ 56″ Ｎ 139° 48′ 01″ E(d) 35° 26′ 36″ Ｎ 139° 45′ 47″ E

(g)

(i)

Anchorages for
YL1 Priority
VLCCs, etc., used with YL3

For General Cargo Vessels or General Tankers : K2

Name ofAnchorage

For Tankers Carrying Dangerous Cargo : KK1 & YK1A circle with a radius of ５７５m centered the position
35° 26′ 59″ Ｎ 139° 44′ 29″ E

For Tankers Carrying Dangerous Cargo Anchorage in Reserve: KK2,YK2,& YK3

NR

For General Cargo Vessels or General Tankers : N3

Anchorages for Other Vessels

Name ofAnchorage

YL3

For Large-sized Vessels
except for VLCCs, etc.

An area bounded by a line joining the following positions(a) 35° 26′ 01″ Ｎ 139° 43′ 02″ E(b) 35° 26′ 33″ Ｎ 139° 43′ 22″ E(c) 35° 26′ 48″ Ｎ 139° 43′ 42″ E(d) 35° 27′ 23″ Ｎ 139° 44′ 27″ E(e) 35° 26′ 36″ Ｎ 139° 45′ 47″ E(f) 35° 25′ 30″ Ｎ 139° 43′ 54″ E

For Lightering Operations : ON & N4
For Tank Cleaning Operations or Bunkering Operations, etc.
: NR

Remarks
1. Vessels of 10,000 GT or more or 150 meters or more in length are classiﬁed to anchor in the anchorages for large-seized vessels, while those of less thanName ofAnchorage

YL4

For Large-sized Vessels
except for VLCCs, etc.

An area bounded by a line joining the following positions(a) 35° 25′ 06″ Ｎ 139° 41′ 43″ E(b) 35° 25′ 19″ Ｎ 139° 42′ 36″ E(c) 35° 25′ 43″ Ｎ 139° 42′ 51″ E(d) 35° 25′ 17″ Ｎ 139° 43′ 32″ E(e) 35° 24′ 58″ Ｎ 139° 42′ 57″ E(f) 35° 24′ 27″ Ｎ 139° 42′ 30″ E

10,000 GT are classiﬁed to anchor in the anchorages for small and medium-sized vessels.
2.Vessels of less than 500 GT are required to anchor in the anchorages for small and medium-sized vessels, avoiding the area marked in blue in the above
diagram where sea berths are located.
3.Since Y1 anchorage tends to be congested, and situations frequently occur where vessels designated to particular anchorages are unable to anchor, we
ask for your cooperation in anchoring anchorages except for Y1 anchorage.

Anchorages for Small andMedium-sized Vessels

Anchorages forLarge-sized Vessels

For General Cargo Vessels : N1 & N2

(a)
(b)
(d)
(a)
(c)

(h)

For Vessels except for Tankers Carrying Dangerous Cargo: K1,Y1,& Y2(a)

N2Locations and Areas of Anchorages

Priority Anchorages for VLCCs, etc. : YL1(f)(b)

https://www.kaiho.mlit.go.jp/03kanku/yokohama/tuho.pdf

In order to ensure communication with the Japan Coast Guard in the event of an emergency, such as when dragging
anchor, we ask for your cooperation in reporting your "anchoring position" and "means of communication" when the"Recommendations on the Reinforcing Anti-Dragging Anchor Measures" are issued.
Vessels to report: Vessels intending to anchor in Keihin Port (Yokohama and Kawasaki Area) of less than 500 GT (exceptVessels Carrying Dangerous Cargo)
Where to report: Yokohama Coast Guard Oﬃce TEL:045-201-8180 FAX: 045-211-2405

AnSe orShin-Honmoku-Futoua ing
Construction Works Area
Ar R
The Sea Area for the Reinforcing
ea estA link to a reporting form for anchoring position reporting

Request for notiﬁcation of youranchoring position, etc.

(d)
(e)

YL3

① execute the Reinforcing Anti-Dragging-Anchor Measures to prevent dragging anchor accidents, such as good radio watch on
VHF 16, the increase of watch person on the bridge, and the extension of the anchor chains properly;② make an eﬀort to detect a sign of dragging-of-anchor at an early stage, promptly resolve it, and start the engines, etc.,
if necessary, with a view to preventing collision with the facilities; and③ shift to other anchorages or take other measures such as heaving-to in the early stage of dragging-of-anchor when the【Orders】 If a ship captain does not follow the recommendations ① or ②, an order shall be issued to follow the content of thenon-compliant recommendations.

K1(e)

ONYL1

When When "strong wind areas" are expected to reach the area (when a typhoon hits) or when a wind speed of 20m/s
or more is expected. (other than when a typhoon hits).
Outline【Recommendations】

(b)

KL(d)
(d)

● The Recommendations on the Reinforcing Anti-Dragging-Anchor Measures

(b)

KK2
Kawasaki
(c)
(d)

rouit

rb

Ha

(c)

(e)
(f)

(c)

(c)

(d)(b)

ag

(f)
(b)

(c)

(b)

edct
ri
st a
Re reg A
in eaor SchYo

KK1

K2 (d) (a)

(d)

An(c)

(g)

geEN
Ea EO Sst/We Ogishst
Se imaa-Berth(a)(b)

The Sea Area for the Reinforcing Anti-Dragging Anchor Measures and others(the Sea Area around LNG Berths and Minami-Honmoku Hama Road), etc.
Applicable penal provisions: Article 39 (iii) and (iv) of the Act on Port Regulations.

Name ofAnchorage

YL5

For Large-sized Vessels
except for VLCCs, etc.

An area bounded by a line joining the following positions(a) 35° 23′ 29″ Ｎ 139° 40′ 59″ E(b) 35° 23′ 57″ Ｎ 139° 41′ 33″ E(c) 35° 24′ 30″ Ｎ 139° 41′ 53″ E(d) 35° 24′ 08″ Ｎ 139° 42′ 19″ E(e) 35° 22′ 56″ Ｎ 139° 41′ 41″ E

Name ofAnchorage

except for Tankers
Y1 For Vessels
Carrying Dangerous Cargo

An area bounded by a line joining the following positions(a) 35° 26′ 49″ Ｎ 139° 41′ 44″ E(b) 35° 27′ 11″ Ｎ 139° 42′ 07″ E(c) 35° 27′ 19″ Ｎ 139° 42′ 31″ E(d) 35° 26′ 33″ Ｎ 139° 43′ 22″ E(f) 35° 26′ 01″ Ｎ 139° 43′ 02″ E
Name ofAnchorage

except for Tankers
Ｙ2 For Vessels
Carrying Dangerous Cargo

An area bounded by a line joining the following positions(a) 35° 27′ 10″ Ｎ 139° 43′ 17″ E(b) 35° 27′ 34″ Ｎ 139° 43′ 53″ E(c) 35° 27′ 54″ Ｎ 139° 44′ 05″ E(d) 35° 27′ 23″ Ｎ 139° 44′ 27″ E(e) 35° 26′ 48″ Ｎ 139° 43′ 42″ E

Name ofAnchorage

N1 For General Cargo Vessels

An area bounded by a line joining the following positions(a) 35° 23′ 20″ Ｎ 139° 39′ 16″ E(b) 35° 23′ 41″ Ｎ 139° 39′ 48″ E(c) 35° 23′ 21″ Ｎ 139° 40′ 06″ E(d) 35° 23′ 01″ Ｎ 139° 39′ 36″ E
Name ofAnchorage

N2For General Cargo Vessels

An area bounded by a line joining the following positions(a) 35° 22′ 48″ Ｎ 139° 39′ 38″ E(b) 35° 23′ 16″ Ｎ 139° 40′ 20″ E(c) 35° 23′ 00″ Ｎ 139° 40′ 41″ E(d) 35° 22′ 31″ Ｎ 139° 39′ 58″ E
Name ofAnchorage

Cargo
N3 For Tankers CarryingorDangerous
General Tankers

An area bounded by a line joining the following positions(a) 35° 22′ 43″ Ｎ 139° 39′ 30″ E(b) 35° 22′ 48″ Ｎ 139° 39′ 38″ E(c) 35° 22′ 31″ Ｎ 139° 39′ 58″ E(d) 35° 23′ 00″ Ｎ 139° 40′ 41″ E(e) 35° 22′ 46″ Ｎ 139° 40′ 59″ E(f) 35° 22′ 36″ Ｎ 139° 40′ 48″ E(g) 35° 21′ 48″ Ｎ 139° 40′ 39″ E(h) 35° 21′ 54″ Ｎ 139° 39′ 36″ E(i) 35° 21′ 35″ Ｎ 139° 39′ 04″ E

Name ofAnchorage

YK1 For Tankers Carrying
Dangerous Cargo

An area bounded by a line joining the following positions(a) 35° 27′ 55″ Ｎ 139° 43′ 12″ E(b) 35° 28′ 19″ Ｎ 139° 44′ 08″ E(c) 35° 27′ 54″ Ｎ 139° 44′ 05″ E(d) 35° 27′ 34″ Ｎ 139° 43′ 53″ E

Name ofAnchorage

KK1 For Tankers Carrying
Dangerous Cargo

An area bounded by a line joining the following positions(a) 35° 29′ 09″ Ｎ 139° 45′ 59″ E(b) 35° 28′ 33″ Ｎ 139° 46′ 23″ E(c) 35° 28′ 21″ Ｎ 139° 45′ 56″ E(d) 35° 28′ 50″ Ｎ 139° 45′ 16″ E
Name ofAnchorage

For Tankers Carrying Dangerous
KK2 Cargo (Anchorage in Reserve)

Name ofAnchorage

Tankers Carrying Dangerous
YK2 For Cargo(Anchoragein Reserve)

Name ofAnchorage

YK3An area bounded by a line joining the following positions(a) 35° 28′ 25″ Ｎ 139° 45′ 01″ E(b) 35° 28′ 33″ Ｎ 139° 45′ 14″ E(c) 35° 28′ 07″ Ｎ 139° 45′ 38″ E(d) 35° 28′ 00″ Ｎ 139° 45′ 25″ E

A circle with a radius of ２００m centered the position
35° 27′ 38″ Ｎ 139° 43′ 31″ E

For Tankers Carrying Dangerous
Cargo(Anchorage in Reserve)

A circle with a radius of 17０m centered the position
35° 27′ 31″ Ｎ 139° 43′ 19″ E
Name ofAnchorage

except for Tankers
K1 For VesselsCarrying Dangerous Cargo

An area bounded by a line joining the following positions(a) 35° 29′ 23″ Ｎ 139° 47′ 56″ E(b) 35° 28′ 50″ Ｎ 139° 48′ 33″ E(c) 35° 28′ 15″ Ｎ 139° 48′ 33″ E(d) 35° 27′ 56″ Ｎ 139° 48′ 01″ E(e) 35° 28′ 33″ Ｎ 139° 47′ 28″ E

Name ofAnchorage

Cargo Vessels
K2 For General or
General Tankers

An area bounded by a line joining (a) to (d) and (e) to (g),(d) to (e) lining along the circle designated as Quarantine area.

(a) 35° 29′ 35″ Ｎ 139° 46′ 58″ E(b) 35° 29′ 24″ Ｎ 139° 47′ 06″ E(c) 35° 29′ 11″ Ｎ 139° 46′ 37″ E(d) 35° 29′ 00″ Ｎ 139° 46′ 44″ E(e) 35° 28′ 39″ Ｎ 139° 46′ 36″ E(f) 35° 28′ 33″ Ｎ 139° 46′ 23″ E(g) 35° 29′ 09″ Ｎ 139° 45′ 59″ E

Anchorages for Other Vessels
Name ofAnchorage

For Lightering Operations

ON (except for bunkering and etc.)

A circle with a radius of ４５０m centered the position
35° 27′ 22″ Ｎ 139° 45′ 01″ E
Name ofAnchorage

Lightering Operations
N4 For(except for bunkering and etc.)

A circle with a radius of ４５０m centered the position
35° 22′ 29″ Ｎ 139° 41′ 06″ E
Name ofAnchorage

For Tank Cleaning Operations
NR or＊Bunkering Operations, etc.

A circle with a radius of ６５０m centered the position

35° 21′ 52″ Ｎ 139° 41′ 08″ E＊Vessels can use NR Anchorage as well forbunkering Operations, etc.

Water Areas for Maneuvering
Vessels to /from the Sea Berths
ENEOS Ogishima East/West Sea-BerthAn area bounded by a line joining (a) to (e) (describedbelow)and(e) to (f) lining along the circle with a radius of620m centered the position 35°28′47″Ｎ 139°47′09″E,(f)to (a) lining along the circle designated as Quarantine area.

(a) 35° 28′ 59″ Ｎ 139° 46′ 44″ E(b) 35° 29′ 03″ Ｎ 139° 46′ 56″ E(c) 35° 29′ 37″ Ｎ 139° 47′ 24″ E(d) 35° 29′ 23″ Ｎ 139° 47′ 55″ E(e) 35° 28′ 33″ Ｎ 139° 47′ 26″ E

Kawasaki Sea-BerthA circle with a radius of ６００m centered the position
35° 28′ 01″ Ｎ 139° 46′ 05″ E

JERA Ogishima LNG BerthAn area bounded by a line joining (a) to (b) (describedbelow)and lining along the circle with a radius of620m centered the position
35° 28′ 00″ Ｎ 139° 44′ 34″ E(a) 35° 28′ 18″ Ｎ 139° 44′ 46″ E(b) 35° 27′ 44″ Ｎ 139° 44′ 52″ E

Tokyo Gas Ogishima LNG BerthA circle with a radius of ５２０m centered the position
35° 27′ 32″ Ｎ 139° 43′ 18″ E

4.Vessels intending to anchor are requested to prevent maritime accidents caused by dragging their anchors by:(1) Obtaining the latest weather and marine weather information (utilization of the Safety Information for the Sea);(2) Continuous watch on VHF CH 16, keeping AIS in operation (do not leave the bridge unattended);(3) Continuous appropriate watch at all times (e.g., watch for dragging anchor of own vessel and other vessels);(4) Keeping enough distance from oﬀshore facilities, other vessels, or the shore;(5) Use of adequate anchor cable;

ible measures to pree take all posspare fosaelP＊r-anchor, especially for car cardragging
riers,
roo,
thsreerirvreascsrels with hcontaineighsceuspteirbalettaohtthderawoibnd!
reef(6) abandoning anchoring, changing to heaving-to, etc., depending on the situation; and(7) Stand-by engine and full readiness by the crew (when there is a fear of weather aggravation) .

For Inquiries

Yokohama Coast Guard Oﬃce TEL: 045-201-8180

Kawasaki Coast Guard Station TEL:044-266-0118

Supervised by Yokohama Coast Guard Oﬃce

Issued by Tokyo Wan Association for Marine Safety

Publishing this sheet is supportedby the Japan Marine Center