A series of mild tremors continued to shake parts of Karachi to the fourth consecutive day on Wednesday, with seismic activity Tracked the reactivation of the Landhi error line, according to officials.

Data released by the National Tsunami Center for Meteorological Department revealed that 27 earthquakes had been recorded across five places in the city since Sunday.

Although the earthquakes were of light to moderate intensity on the Richter scale, their shallow depth made them be widely felt by residents in several areas.

Malir experienced the highest number of tremors, with 11 reported events, followed by 11 in Defense Housing Authority (DHA). Three were registered in Qaidabad, while Korangi and Gadap reported a trembling each.

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Officials at the National Tsunami Center attributed to the seismic activity for re -enabling Landhi error, a sleeping geological structure underlying parts of the city.

Tsunami Center -Director Amir Haider Laghari said the shaking was the result of underground energy being gradually released along the error line.

“This slow energy emission is a natural process and helps reduce the likelihood of a large earthquake,” he said, noting that Landhi error line had become active after sleeping for decades. He added that the shallow depth of the shake was responsible for the strong vibrations that felt on the surface.

Providing wider context, Dr. Adnan Khan, associate professor and geologist at the University of Karachi, told Express Pakinomist That this was less trembling and not a cause of alarm.

He explained that Karachi lies on a passive tectonic margin, far from any major error line, making large, destructive earthquakes very unlikely in the region.

“These shivers are classified as mild, the result of less tectonic movements and stress accumulation deep inside the Earth’s crust,” Dr. Khan.

He also associated these movements indirectly with the Himalayan Tectonic activity, where the northern shift of the mountain range-with 4 to 5 cm annual can generate remote tectonic pressure, which occasionally manifests itself as low-intensity earthquake, even in remote areas like Karachi.

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Dr. Khan also pointed to human factors that can play a subtle role in changing underground stability, including combustion of industrial waste and excessive groundwater extraction, both of which can affect local seismic behavior over time.

Although no loss of life or property damage has been reported so far, experts have warned that trembling can continue for several days more. Authorities continue to monitor the situation closely and have advised the public to remain aware and follow security rules.