Coverage and activity

Monitoring uses a rolling interval equal to the selected duration. Event reports refresh in place; no background notifications.

Analyse a region up to 20 degrees wide over at most 24 hours.

Inspect a location

Enable, then click the globe to choose a location.

Ports

Search the World Port Index.

Port AIS reception report

Run a report to compare recent received vessel positions.

Clouds · satellite weather

Observed cloud imagery. Checks for new images every five minutes while this page is visible; image age depends on the provider.

Satellite imagery is off.

Cyan boundaries: regional infrared. Each region uses its assigned infrared source when its advertised image is no more than six hours old. Older or unavailable imagery leaves the region uncovered. VIIRS is a separate optional view in the Satellite view menu.

These are display sectors, not satellite footprints. Missing pixels remain gaps. Brightness is not directly comparable across different infrared sources. Lower opacity blends with the base map.

Independent of vessel playback. Daily composite dates are not exact capture times. No rain or surface wind is inferred from these pictures.

Availability checked every five minutes. Latest check: unavailable. No image archive is stored locally.

Lightning · EUMETSAT

Five-minute accumulated flash area, including lightning within clouds. This is not a map of individual ground strikes.

Regional satellite coverage, not worldwide. Missing pixels or detections do not establish safe conditions.

Shipwrecks

Purple points: recorded wreck locations; nearby points cluster at wider views.

Browse wrecks and vessel images

Oil & gas platforms

Browse all 264 platform and floating-facility records

Bathymetry

Seabed shading off; land imagery remains available.

Land uses the EOX Sentinel-2 cloudless 2024 reference mosaic when enabled, with Natural Earth as fallback. This is not current satellite weather. The generalized land mask can soften or offset coastal boundaries. EOX imagery is used under CC BY-NC-SA 4.0 for this non-commercial platform.

GEBCO provides global shaded bathymetry at 15 arc-second grid spacing. EMODnet adds regional detail at 3.75 arc seconds below 3,000 km camera altitude. Pure-white regional pixels, including the zero-elevation colour, are transparent so GEBCO remains visible. This display fallback does not change numerical depth queries. Grid spacing does not establish depth accuracy.

These are imagery overlays; use Local 3D seabed for numerical terrain. EMODnet depths use LAT; GEBCO is generally mean sea level. No datum conversion or depth blending is applied. Not for navigation or safety at sea.

EMODnet Bathymetry · sources and quality

GEBCO service and attribution · Dataset terms and quality

UK coastal aerial imagery

Original imagery is preferred. WMS surveys contain prominent provider watermarks and may have visible survey seams; they are off by default.

Checking local originals...

Loading CCO survey catalogue...

0 aerial year groups from 2022 onwards. Older surveys are excluded from these globe controls. Coverage differs by year; a blank area does not establish coverage in other years. Imagery loads only at coastal zoom levels. WMS native resolution and exact survey dates remain unverified; local originals have separate verified metadata. Approximate datum transformation; not survey-grade positioning. WMS copyright details require verification before publication; local original attribution is shown above.

Local 3D seabed

Load a small numerical grid around the view centre.

True vertical scale (1×). The globe becomes transparent to reveal the grid. Missing cells are omitted. Mean-sea-level elevations are placed relative to the ellipsoid without a datum correction.

GEBCO / CEDA source, attribution and terms

Infrastructure

Import a local region to begin. Coverage is incomplete.

Mapped platforms, offshore wind, lighthouses, navigation buoys and underwater cables. Community coverage and accuracy are unverified. Outlines are retained; operational status is unknown.

© OpenStreetMap contributors · ODbL

Earthquakes & tsunami bulletins

Loading earthquake and tsunami sources…

Orange dots: USGS earthquake epicentres. Initial import covers the past 24 hours; longer history accumulates while the server runs. Reports may be revised.

Blue dots locate the bulletin's earthquake, not the threatened coastline. No tsunami warning is inferred from earthquake magnitude.

Warning coverage is incomplete. No bulletin does not mean all clear.

Server checks feeds about every minute; this panel refreshes every minute. This prototype does not replace official emergency alerts.

USGS: not yet checked · STALE / unavailable

NTWC: not yet checked · STALE / unavailable

PTWC: not yet checked · STALE / unavailable

Satellite imagery · last seven days

Cyan outline: the selected radar image footprint. It shows where imagery was acquired, not a detected vessel.

Loading recent satellite scenes…

UK shortcut: 8°W–2°E, 49°N–59°N. Current-view checks support regions up to 20° per side that do not cross the date line. Catalogue checks are on demand, at most once per ten minutes. Image pixels have not been downloaded.

No loaded scene meets the selected age limit. This does not establish an absence of satellite coverage.

Last catalogue check: not yet checked. Older records remain stored and are hidden here.

Delayed AIS activity · GFW

Loading stored delayed activity…

Each orange marker represents one vessel’s historical activity. Its anchor is one reported cell, not a latest or current position. Select a vessel to show its reported cells in this view. GFW usually has a roughly 72-hour delay; actual report dates are shown below. Satellite and terrestrial sources are combined.

Only the last seven days are shown. A cell is hidden when recent AIS falls inside it, or its vessel has AIS newer than the report day anywhere. Checked every 30 seconds. Missing reception does not prove lack of coverage.

Checking worldwide import…

Worldwide ocean import is incremental. Empty areas may still be pending or lack source data. Generalized Natural Earth ocean boundaries are used.

Global Fishing Watch · terms and attribution

GFW satellite observations

Loading stored GFW observations…

Magenta diamonds and shaded cells: satellite radar observations, separate from live AIS. This dated sample remains visible independently of the vessel timeline.

Maritime security & exclusion zones

Conflict-related maritime advisories, piracy threats and navigation notices. These reports do not establish legal exclusion boundaries.

Loading official notice sources…

Snapshot saved: unavailable

0 matching notices; showing up to 100. Index entries link to the full official advisory; dates are shown as supplied (MM/DD/YYYY).

0 sourced zone imports. No boundary is generated from a place name or threat report. Orange outlines are within the supplied date window; grey are outside it. Neither confirms current legal status.

MSCI: not checked

NGA: not checked

MARAD_EMAIL: not checked

Web sources checked every ten minutes; configured mailbox every five minutes while the server runs. Consult official navigation and security instructions before acting.

Port intelligence

Reported port movements and schedules. These are not live AIS positions.

0 matches

Snapshot saved: unavailable
Source update: not supplied

Source and intellectual property: Hong Kong SAR Government, Marine Department / DATA.GOV.HK. Data supplied as-is; accuracy and current status are not independently verified.

Sources checked every 20 minutes while the server runs. Expected arrivals remain estimates.

Tropical cyclones