Surveys

This marad advisory provides guidance to vessels transiting to or from ports in japan or in waters in the…

Japan-northeast Coast · HYDROPAC 850/11

issued
2011-03-18 16:18Z
status
cancelled 2011-05-09 00:00Z (archive)
authority
MARAD ADVISORY 2/11 181545Z MAR 11.
position
37.317, 141.017
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

JAPAN-NORTHEAST COAST.
1. THIS MARAD ADVISORY PROVIDES GUIDANCE TO VESSELS
   TRANSITING TO OR FROM PORTS IN JAPAN OR IN WATERS
   IN THE VICINITY OF THE NORTHEAST COAST OF THE
   ISLAND OF HONSHU.
2. U.S. FLAG OPERATORS WITH SHIPS IN THE AFFECTED
   AREAS ARE REQUESTED TO FORWARD THIS ADVISORY TO
   THEIR SHIPS BY THE MOST EXPEDITIOUS MEANS.
3. A 8.9/9.0 MAGNITUDE EARTHQUAKE STRUCK THE PACIFIC OCEAN
   NEAR NORTHEASTERN JAPAN AT AROUND 1446 ON MARCH 11 (JST)
   CAUSING DAMAGE WITH BLACKOUTS, FIRE AND A TSUNAMI.
   NUCLEAR POWER PLANTS NEAR FUKUSHIMA WERE DAMAGED AND
   RADIATION RELEASE WAS DETECTED AND IS BEING MONITORED
   BY JAPAN.
4. IN RESPONSE TO THE SITUATION AT THE FUKUSHIMA NUCLEAR
   POWER PLANT, THE UNITED STATES NUCLEAR REGULATORY
   COMMISSION (NRC), THE DEPARTMENT OF ENERGY AND OTHER
   TECHNICAL EXPERTS IN THE U.S. GOVERNMENT HAVE REVIEWED
   SCIENTIFIC AND TECHNICAL INFORMATION COLLECTED FROM
   ASSETS IN JAPAN, AS WELL AS WHAT THE GOVERNMENT OF JAPAN
   HAS DISSEMINATED. CONSISTENT WITH THE RESULTS OF THAT
   REVIEW, NRC GUIDELINES AND GUIDANCE ISSUED BY THE U.S.
   AMBASSADOR TO JAPAN, THE U.S. COAST GUARD RECOMMENDS,
   AS A PRECAUTION, THAT VESSELS AVOID TRANSITING WITHIN
   50 MILES (80 KILOMETERS) OF THE FUKUSHIMA NUCLEAR POWER
   PLANT AT 37-19N 141-01E. MARINERS ARE ADVISED THAT THIS
   RECOMMENDATION SHOULD BE CONSIDERED A MINIMUM DISTANCE
   FROM THE FUKUSHIMA NUCLEAR POWER PLANT SHOULD BE AVOIDED.
   PRUDENT TRACKLINE PLANNING SHOULD INCORPORATE CURRENT
   WIND AND WEATHER CONDITIONS.
5. MARINERS ARE ADVISED TO MONITOR AND COMPLY WITH NAVTEX
   AND NAVAREA XI WARNINGS. MARINERS SHOULD KEEP ABREAST
   OF INFORMATION BEING PROVIDED BY THE GOVERNMENT OF JAPAN
   RELATING TO ANY FURTHER POTENTIAL IMPACTS. THE MARTIME
   ADMINISTRATION AND THE U.S. COAST GUARD WILL PROVIDE
   UPDATED NOTICES AS ADDITIONAL GUIDANCE BECOMES AVAILABLE.
6. IN THE EVENT A VESSEL BOUND FOR A U.S. PORT TRANSITS WITHIN
   THE 50-MILE (80-KILOMETER), PRECAUTIONARY AREA, THE U.S.
   COAST GUARD RECOMMENDS THE VESSEL'S MASTER TO SUBMIT TRANSIT
   INFORMATION, INCLUDING THE DATE AND TOTAL TIME WITHIN THE
   PRECAUTIONARY AREA, TO THE COGNIZANT U.S. COAST GUARD
   CAPTAIN OF THE PORT USING THE COMMENT BLOCK ON THE 96 HR
   ADVANCED NOTICE OF ARRIVAL.
7. THIS ADVISORY WILL BE PUBLISHED ON THE MARAD WEB SITE
   AT WWW.MARAD.DOT.GOV UNDER THE NEWSROOM TAB.
8. FOR FURTHER INFORMATION REGARDING THIS ADVISORY, CONTACT
   CAPTAIN ROBERT FORD, MARITIME ADMINISTRATION,
   OFFICE OF SECURITY, CODE: MAR-420, ROOM W25-308,
   1200 NEW JERSEY AVE, S.E., WASHINGTON, DC 20590,
   PHONE: 202 366 0223, FAX: 202 366 3954,
   TELEX: 710 822 9426 (MARAD DOT WSH) OR
   E-MAIL: [email protected].

This area · survey operations

7 within 180 nm since 2005 · 0 in the last 12 months · 0 in force now

05
10
15
16

Season · when survey operations happen here

J
F
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M
J
J
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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

73 survey operations in force · see all

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.