Can India predict earthquakes? Here's what its warning system actually does

New Delhi: India cannot scientifically predict earthquakes before they occur, but it has developed an earthquake early warning system in the Himalayan region that can provide valuable seconds of advance notice once a quake begins, potentially helping save lives.

India has no earthquake prediction technology

Despite advances in science and technology, India, like most countries around the world, does not possess scientifically proven technology capable of predicting exactly when and where an earthquake will strike. Earthquakes remain one of the most difficult natural disasters to forecast because they occur due to sudden movements of tectonic plates deep beneath the Earth's surface.

Instead of prediction, India's focus has shifted towards earthquake early warning (EEW) systems that detect an earthquake immediately after it begins and issue alerts before stronger shaking reaches populated areas.

How India's earthquake early warning system works

An earthquake produces different types of seismic waves. The first to travel are Primary Waves (P-waves), which move the fastest but generally cause minimal damage. They are followed by Secondary Waves (S-waves) and surface waves, which are significantly more destructive.

India's earthquake early warning system is designed to detect these initial P-waves using strategically placed seismic sensors near active fault lines. Once detected, the system rapidly estimates the earthquake's location and magnitude before sending alerts to people and authorities farther away from the epicentre.

Although the warning may last only a few seconds, those moments can be enough to stop trains, shut down industrial operations, halt elevators, activate emergency systems and allow people to move to safer locations or take cover.

IIT Roorkee and the BhuDEV app

One of India's most significant advances in earthquake preparedness has been led by IIT Roorkee in collaboration with the Uttarakhand government.

The institute has developed the BhuDEV earthquake early warning application, which forms part of the region's disaster preparedness strategy. The app is designed to deliver rapid alerts to users when seismic activity is detected, helping residents react before stronger shaking arrives.

National Centre for Seismology developing advanced warning algorithms

The National Centre for Seismology (NCS) is simultaneously working on improving India's earthquake warning capabilities.

According to information previously shared by the Central government in Parliament, the NCS is developing and testing prototype earthquake early warning algorithms capable of:

• Detecting P-waves in real time.
• Estimating earthquake magnitude within seconds.
• Predicting the intensity of ground shaking.
• Issuing rapid alerts using regional seismic data.

These technologies are expected to make earthquake warnings faster and more reliable as the monitoring network expands.

Where the warning system currently operates

India's earthquake early warning infrastructure is primarily concentrated in the seismically active Himalayan region, especially across Uttarakhand's Garhwal and Kumaon regions.

Hundreds of seismic sensors have been installed close to active geological faults, allowing scientists to detect earthquakes almost immediately after they begin.

Areas located very close to the earthquake's epicentre may receive little or no warning because the damaging waves arrive almost instantly. However, cities located farther away may receive several seconds of advance notice before stronger shaking begins.

Why every second matters

While a few seconds may seem insignificant, they can make a major difference during a large earthquake.

Early warnings allow authorities to trigger emergency response systems, stop high-speed trains, suspend sensitive industrial operations, isolate gas and electricity supplies and issue alerts to hospitals, schools and public transport networks.

For individuals, even a brief warning provides enough time to move away from windows, take shelter under sturdy furniture or evacuate hazardous areas where possible.

Global leaders in earthquake early warning

Several countries have already established highly advanced earthquake early warning systems.

Japan operates one of the world's fastest and most sophisticated earthquake alert networks, providing warnings through television broadcasts, mobile phones and public announcement systems.

Taiwan has also developed a rapid detection network due to its frequent seismic activity, while the United States operates ShakeAlert across much of the country's west coast, delivering alerts through smartphones and emergency systems.

India continues to strengthen its own capabilities by expanding sensor networks, improving detection algorithms and integrating new technologies into its disaster management framework.

What this means for India

Although earthquake prediction remains beyond the reach of current science, India's investment in earthquake early warning technology marks an important step towards improving disaster preparedness.

As the seismic monitoring network expands across vulnerable regions and detection systems become more accurate, early warning technology could help reduce casualties, minimise damage and improve emergency response during future earthquakes.