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The sound was not due to an earthquake, officials state.

A loud noise heard by residents of several parts of Bengaluru on Wednesday has ended up be a secret.

People in Whitefield, Electronics City, HAL, HSR Layout and other areas posted on social media that they heard the sound at around 1.30 p.m. They called it ‘loud boom’ and ‘thunderous noise’. Some likewise grumbled about windows rattling.

An official of the Karnataka State Natural Catastrophe Monitoring Centre (KSNDMC) stated, “The activity reported in Bengaluru is not due to an earthquake. Seismometers did not record any ground vibration as generally happens during a mild trembling. The activity is simply a loud unknown n