Nga chart 16486 (7TH ed)
Bering Sea · NAVAREA XII 315/08
What this record establishes
Archived notice · 2008-08-30 09:05Z
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) · CCGD17 307/08 08150Z AUG 08.. Issued 2008-08-08 21:09Z. 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
- Bering Sea. The parsed report position is 52.167, -175.500. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
- issued
- 2008-08-08 21:09Z
- status
- Archived notice
- authority
- CCGD17 307/08 08150Z AUG 08.
- NAVAREA
- NAVAREA XII
- sea
- Bering Sea
- position
- 52.167, -175.500
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NGA CHART 16486 (7TH ED). VOLCANIC ERUPTION REPORTED IN 52-10N 175-30W. ASH CLOUD IN AREA AT APPROXIMATE ELEVATION OF 45,000 FEET. DUE TO POSSIBLE SUB-SURFACE ERUPTION NUMEROUS LARGE PUMICE RAFTS, VOLCANIC GASES OR ASH FALLOUT MAY CAUSE HAZARDS TO NAVIGATION. SEVEN MILE BERTH REQUESTED. CONTACT WITH ASH OR SPOTTING FLOATING DEBRIS REPORTS TO ALASKA VOLCANO OBSERVATORY, PHONE: 907 786 7497.
Reading this warning
- Chart reference
- The number of the nautical chart on which the reported position lies.
- Volcanic activity
- An erupting or restless volcano near or under the sea, with a keep-clear radius around it.
- 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.
- Pumice
- Light volcanic rock floating in rafts after a submarine eruption; it can clog engine cooling intakes.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
Collected reports in this area · drifting objects
1 within 180 nm since 2008 · 0 in the last 12 months · 0 listed in force now
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
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
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
3 drifting objects listed in force · see all
Record snapshot 2026-09-29 18:35Z; source collection times vary.
Debris
Logs, buoys, mooring gear and other objects adrift. All current drifting objects →
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.