About Anti Shipping Activity

Article 101 of the United Nations Convention on the Law of the Sea (UNCLOS)

sets out the definition of piracy under international law, as follows:

Piracy consists of any of the following acts:

  1. Any illegal acts of violence or detention, or any act of depredation, committed for private ends by the crew or the passengers of a private ship or a private aircraft, and directed:

    - on the high seas, against another ship or aircraft, or against persons or property on board such ship or aircraft.

    - against a ship, aircraft, persons or property in a place outside the jurisdiction of any State.

  2. Any act of voluntary participation in the operation of a ship or of an aircraft with knowledge of facts making it a pirate ship or aircraft.

  3. Any act of inciting or of intentionally facilitating an act described in subparagraph 1 or 2.

Piracy acts on the marine map

In Maritime Optima you will find updated Anti Shipping Activity in the menu on your right side. Go first to the Map Layers and then choose the filter you need - Anti Shipping Activity.

Anti shipping Activity Messages (ASAM) include the locations and descriptive accounts of specific hostile acts against ships and mariners. The reports may be useful for recognition, prevention and avoidance of potential hostile activity.

We update our Anti shipping Activity Messages maps every 24 hours and you will find the adverse events against ships and mariners reported during the last 365 days.

Zoom in and click on the reported adverse events to see more details about the incident:

Here we have added the Suezmax sub segment to the map, and the vessels are marked in yellow color. You can follow any vessels in real-time, so you can be aware of the risk you are carrying trading in waters where piracy may occur.

Read more about United Nations Convention on the Law of the Sea (UNCLOS) and piracy in this document.

Mobile App

On your mobile phone you will find the piracy maps in the menu at the button of the screen. Choose Map Styles and Layers, and then select Anti Shipping Activity tab. Click on any area to see the details.

Next steps

After you started to work with map layers, here are some tips for you what to do next:

  • Read next: learn about Congestion Layer in your ShipAtlas app

  • Check out this video to see how to use map layers in ShipAtlas

  • Study our User guide to learn how to set up different features in ShipAtlasa and try them out

  • Check out the Pricing Page, so you know what Plan fits best to your needs.

💡 We recommend you to use both the mobile app and desktop application to get the best of ShipAtlas by Maritime Optima. Use the same login. Synced in real-time.

If you have any problems or questions, let us know in the chat box or send an e-mail to post@maritimeoptima.com and we will help you.

Read next: Congestion Layer

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