Sania Anees, a resident of Karachi, told Xinhua that she was sitting in her office when the earthquake occurred and she ran out for her life.
"I was working in my office when everything started shaking and someone shouted "run, it's earthquake", I jumped off my chair and ran out of the office's exit door where my other colleagues were running too, some women were crying in fear, others were praying to God for mercy", Sania said.
Elsewhere in Dera Ghazi Khan, a city located in the country's eastern Punjab province, three people were injured and five cattle died in land sliding triggered by earthquake.
In a similar incident, one man was killed due to land sliding in the country's southwest Gawadar port area.
Meanwhile, in Panjgur district of Balochistan, several barracks of Frontier Constabulary (FC) were damaged in the earthquake, the FC spokesperson said, without mentioning any casualties.
Caretaker Prime Minister Mir Hazar Khan Khoso expressed sorrow over the natural disaster and directed concerned officials to quicken the process of rescue and relief operation.
President Asif Ali Zardari also expressed grief over the earthquake in Pakistan and Iran, and sympathized with the affected people. He also directed all concerned officials to work in an organized manner to help the affected people.
Nawab Ghous Bakhs Barozai, caretaker Chief Minister of Balochistan province, called for a high-level meeting in provincial capital of Quetta and charted out plans for the rescue and relief operation for the affected people.
Pakistan is located in one of the most earthquake prone zones of the world. Geographically, Pakistan lies in the collision zone between the India tectonic plate to the south and the Eurasian plate to the north.
Due to its geographical location, Pakistan has faced many serious earthquakes, and the worst one came in 2005 when tremors of 7.6 magnitude killed over 100,000 people and injured 138,000 others.