Brother sometime it's our imagination and nothing else. After the October 2005 earthquake, which has haunted my memories since then, i used to think every vibration was an earthquake and as soon as i felt it i started looking at the fans or chandeliers if they are swinging. But this feeling gradually subsided. I used to feel them mostly at night. But still I get scared of shaking grounds due to that horrific part of my memory.
Sometimes there are trucks and trawlers passing on the main road near you, they produce vibration too.
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