Navigational warnings on 2026-04-18

UTC day · today

issued
4
cancelled
1
in force at end
678
of these still in force
0

Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so this period is under-counted.

Issued · by type

Quakes4

Issued · by sea

Indian Ocean1
South Pacific Ocean1
Arabian Sea1
Solomon Sea1

USGS earthquakes 4

Issued · 4

Cancelled · 1

Not for navigation. Counts include only warnings we display; ongoing search-and-rescue traffic is excluded until 30 days after it closes.

Navigational warnings on 2026-04-18 · seahazards