Disclosure of the cause of the loud sound in Cairo

The Institute of Astronomical and Geophysical Research in Egypt revealed the truth of what was raised on social media about an earthquake this morning, saying that this is not true and no earthquakes occurred.

He added, according to a statement published by "The Seventh Day" newspaper, that what he monitored as a result of the construction works of the express train east of Cairo resulted in the energy being expelled and exhausted in the air in the form of a strong air shock that caused an increase in the feeling of it.

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