Shaking things up

Building codes must be updated and enforced

Turkey has witnessed one of the most powerful earthquakes that hit the region. It is considered one of the biggest in this region during the last century, has killed thousands of people and devastated several cities. The 7.8 magnitude earthquake hit the region in the darkness of a cold winter morning followed by 7.7 earthquakes in the middle of the day on Monday. Aftershocks can continue for days, weeks, or even months after the main shock and can cause additional damage or cause existing damage to worsen.

Earthquakes can occur anywhere in the world and can range in magnitude from barely noticeable to catastrophic. The magnitude of an earthquake is a measure of the amount of energy released and is typically expressed on the Richter scale. Earthquakes can cause damage to buildings and infrastructure, trigger landslides and tsunamis, and result in loss of life. Despite the scientific understanding of earthquakes and the development of various monitoring and warning systems, still, earthquakes remain largely unpredictable. Scientists can identify areas that are at higher risk of earthquakes based on geological and historical data, but they cannot predict exactly when an earthquake will occur or its exact magnitude. It is important for people in earthquake-prone regions to prepare for the possibility of an earthquake by learning about earthquake safety measures and having a disaster plan in place.

Pakistan is located in a seismically active region and is situated on several major fault lines, making it vulnerable to earthquakes. The country is located at the boundary of the Indian and Eurasian tectonic plates, which are constantly moving and creating pressure. When the pressure builds up, it can cause earthquakes. Some of the major fault lines in Pakistan include the Himalayan Frontal Thrust, the Chaman Fault, and the Balochistan Thrust. Earthquakes have caused significant damage and loss of life in Pakistan in the past, including the 2005 Kashmir earthquake, which had a magnitude of 7.6 and caused over 75,000 deaths.

It’s important for the government and citizens of Pakistan to take proactive measures to prepare for and mitigate the effects of earthquakes, including updating building codes and infrastructure, conducting regular drills, and having emergency response plans in place. The building control authority in Pakistan should ensure that buildings are constructed to current earthquake-resistant standards which can help reduce damage during an earthquake. In many cities in Pakistan including major cities like Karachi, Lahore, Islamabad, Peshawar, and Quetta, the building codes are not strictly enforced. This can lead to significant damage and loss of life in the event of an earthquake.

It is important for the government of Pakistan and local authorities to take steps to improve building code enforcement and ensure that all buildings, including new construction and older buildings, are designed and constructed to withstand earthquakes. This can include providing education and training for builders and architects, strengthening inspection and enforcement processes, and retrofitting existing buildings to improve their seismic performance.

Older buildings can be retrofitted to make them safer and reduce damage during an earthquake this can be done by adding concrete or steel to the foundation of the building to improve its ability to resist seismic forces, adding shear walls, bracing systems, or other reinforcing elements to the building’s walls to improve their ability to resist seismic forces, diaphragms, cross-bracing, or other reinforcing elements to the roof and floor systems to improve their ability to resist seismic forces, improving the connections between the walls, roof, and floor systems to ensure that they work together to resist seismic forces, adding seismic isolation systems, such as base isolation or sliding bearings, to the building’s foundation to reduce the transfer of seismic forces to the building structure.

These retrofitting techniques, especially in Karachi, can be used in combination to improve the seismic performance of older buildings and reduce damage during earthquakes. The specific retrofitting techniques that are used will depend on the type of building, its location, and the severity of the expected earthquakes.

It is important to educate the public about the risks associated with earthquakes and how to prepare can help reduce the impact of earthquakes and save lives.

Another important factor that is severely lacking in Pakistan is having an emergency plan in place and conducting regular earthquake drills can help individuals and communities respond quickly and effectively in the event of an earthquake, especially the residents of Karachi, as the city is one of the largest and most densely populated cities in Pakistan.

In the event of an earthquake, the lack of open spaces and designated evacuation areas can make it difficult for residents to safely evacuate. Emergency supplies, including food, water, first aid supplies, and a reliable source of information, can help individuals and communities respond to an earthquake. Improving infrastructure, such as bridges, roads, and other transportation systems, can help ensure that emergency response and aid can reach affected areas more quickly and effectively.

Another factor is to educate the public about the risks associated with earthquakes and how to prepare can help reduce the impact of earthquakes and save lives.

Karachi is not considered to be at significant risk for tsunamis as it is located on the coast of the Arabian Sea, which is not known for having strong earthquakes or tsunamis. However, it is still important to be prepared for any natural disaster, including tsunamis, as the risk cannot be eliminated.

In the event of a large earthquake or another event that generates a tsunami, it is essential for residents of Karachi to be aware of the potential for a tsunami and to evacuate to higher ground if necessary. The government and local authorities can also take steps to prepare for tsunamis, such as developing early warning systems, conducting regular evacuation drills, and educating the public on what to do in the event of a tsunami.

Another risk that could be a potential threat is a nuclear power plant explosion during an earthquake is a concern, as earthquakes can cause damage to nuclear power plants and potentially release radioactive materials into the environment. However, Pakistani power plants are designed and constructed to withstand earthquakes and other natural disasters. In addition, nuclear power plants are subject to strict regulations and safety standards and are regularly inspected and tested to ensure that they are operating safely and securely. This helps to minimize the risk of a nuclear accident during an earthquake. but we can’t neglect the magnitude of the potential risk of an accident that could be dangerous to life in adjacent areas.

Karachi is not considered to be at significant risk for tsunamis as it is located on the coast of the Arabian Sea, which is not known for having strong earthquakes or tsunamis. However, it is still important to be prepared for any natural disaster, including tsunamis, as the risk cannot be completely eliminated.

In the event of a large earthquake or another event that generates a tsunami, it is essential for residents of Karachi to be aware of the potential for a tsunami and to evacuate to higher ground if necessary. The government and local authorities can also take steps to prepare for tsunamis, such as developing early warning systems, conducting regular evacuation drills, and educating the public on what to do in the event of a tsunami.

Earthquakes are natural disasters that can have devastating effects on communities and the environment. It is important for individuals, communities, and governments to educate themselves about the dangers of earthquakes and to be prepared for these events in order to reduce the impact of earthquakes on people’s lives and the environment. The study of earthquakes and the development of earthquake-resistant technology will play a key role in mitigating the impact of earthquakes and helping communities to recover from these events.

Fayyaz Salih Hussain
Fayyaz Salih Hussain
The writer is a Ph.D Scholar at the National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, and can be reached at [email protected]

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