Maritime English
Emergency Communication

What is Distress Signal?

Distress Signal A signal indicating a vessel or person is in grave and imminent danger and requires immediate assistance. Includes visual, sound, and radio forms recognized by SOLAS and SMCP.

Source: IMO SMCP, STCW Convention, SOLAS, COLREG

How is “Distress Signal” Used in Practice?

Bridge to all stations: if any distress signal such as red flare, SOS, or continuous sounding of bell or horn is observed, report immediately.

Certification Exam Relevance

STCWMarlins TestISF WatchkeeperGMDSS

Who Needs to Know This Term?

  • Deck Officers
  • Engine Officers
  • Masters

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Frequently Asked Questions

What is Distress Signal?

A signal indicating a vessel or person is in grave and imminent danger and requires immediate assistance. Includes visual, sound, and radio forms recognized by SOLAS and SMCP.

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