Other

Geophysical operations in progress until 30 apr by M/V cassandra 9 in area bound by 15-39.61N 080-24.83E,…

Bay of Bengal · HYDROPAC 1195/15

What this record establishes

Archived notice · 2015-05-01 00:01Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA VIII 259/15 091002Z APR 15.. Issued 2015-04-09 11:18Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
Bay of Bengal. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the Bay of Bengal →

issued
2015-04-09 11:18Z
status
Archived notice
authority
NAVAREA VIII 259/15 091002Z APR 15.
NAVAREA
NAVAREA VIII · named as the source of this relay
sea
Bay of Bengal
position
15.546, 80.581
vessel
M/V CASSANDRA 9
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

INDIA-EAST COAST.
BAY OF BENGAL.
DNC 03.
1. GEOPHYSICAL OPERATIONS IN PROGRESS UNTIL
   30 APR BY M/V CASSANDRA 9 IN AREA BOUND BY
   15-39.61N 080-24.83E, 15-28.20N 080-33.91E,
   15-31.85N 080-37.90E, 15-24.98N 080-37.51E,
   15-32.04N 080-43.43E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 01 MAY 15.

Reading this warning

DNC (Digital Nautical Chart)
A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
Position (degrees and minutes)
How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
Wide berth requested
Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · other warnings

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

05
10
15
20

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

Worldwide in the collected sources

23 other warnings listed in force · see all

Record snapshot 2026-10-02 06:10Z; source collection times vary.

Other

Everything the classifier did not place elsewhere. All current other warnings →

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.