Surveys

Underwater operations 28 apr thru 02 may by M/V joides resolution vicinity 24-48N 122-30E

Eastern China Sea · HYDROPAC 637/01

What this record establishes

Archived notice · 2001-05-03 00:00Z

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 XI 226/01 POR EGC #1007 270804Z APR 01. Issued 2001-04-27 11:30Z. 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
Eastern China Sea. The parsed report position is 24.800, 122.500. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Eastern China Sea →

issued
2001-04-27 11:30Z
status
Archived notice
authority
NAVAREA XI 226/01 POR EGC #1007 270804Z APR 01
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Eastern China Sea
position
24.800, 122.500
vessel
M/V JOIDES RESOLUTION · 67 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS 28 APR THRU 02 MAY BY
   M/V JOIDES RESOLUTION VICINITY 24-48N 122-30E.
2. CANCEL THIS MSG 03 MAY.

Reading this warning

Underwater operations
Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
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.
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 · survey operations

8 within 180 nm since 2000 · 0 in the last 12 months · 0 listed in force now

00
05
10
15
16

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

55 survey operations listed in force · see all

Record snapshot 2026-10-01 11:31Z; source collection times vary.

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.