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City Hamburg: Why the Sirens Are Crying in the City Centre on Thursday

Summary by abendblatt.de
It will soon be loud in Hamburg's city centre. Why Hamburg's smartphones are affected – and what the noise means.
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It will soon be loud in Hamburg's city centre. Why Hamburg's smartphones are affected – and what the noise means.

Warning apps are beeping, broadcasters are interrupting their broadcasts, test warnings are appearing on digital billboards, and sirens are wailing: As part of the nationwide warning day, various warning devices will be activated again across Germany starting at 11 a.m. on Thursday, September 11th. This is intended to test the functionality of the technical processes involved in the event of a warning, as well as the warning devices themselves, …

On Thursday the sirens will wail all over Germany from 11 o'clock: It is a nationwide warning day. In addition to sirens, all other warning possibilities, such as the "Cell-Broadcast" introduced by the federal government or the innovative warning app hessenWARN, will be used. [image-1-v]The background and goal of the nationwide action day is to further sensitize citizens for the various warning devices and alarm signals and to test the technical…

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osthessen-news.de broke the news in on Monday, September 8, 2025.
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