The January 15, 1934 earthquake had destroyed several places in Nepal, Bihar and West Bengal. The 7.9 magnitude earthquake that hit Nepal on Saturday was the result of an ongoing collision of tectonic plates, which has caused deadliest earthquakes in the past including the Kashmir quake in 2005.
Magnitude is not the only measure of an earthquake’s potential for destruction, depth at which occurs is equally important. Several factors worked together to make Saturday’s earthquake in Nepal such a devastating event. The earthquake that devastated Nepal on Saturday and jolted northern India, damaging buildings as far apart as Agra and Siliguri, was expected by geologists, who have warned of more Himalayan earthquakes caused by the growing pressures of the sub-continent grinding into the Asian mainland. Very few buildings in India meet the standards prescribed in "Indian Standards Criteria for Earthquake Resistant Design" - first published by the Bureau of Indian Standards in 1962, the latest revision being in 2005. But nothing has changed since 1993, when a relatively milder earthquake of magnitude 6.4 in Maharashtra's Latur district killed nearly 10,000 people in what was considered a non-seismic zone. About 60 percent of India is vulnerable to earthquakes caused by the great, northward grind of the Indian subcontinental landmass. The only serious earthquake that modern India remembers is the temblor that killed about 20,000 in Gujarat in 2001.
No Indian metropolis has witnessed a serious earthquake, although Delhi lies in high-risk Seismic Zone 4.
Although its epicentre was 10 km south of Mount Everest, the Bihar earthquake of 1934 was felt from Mumbai to Lhasa, flattening almost all major buildings in many Bihar districts and damaging many in Calcutta, now Kolkata.
The 1950 Assam earthquake may have geologically set the stage for a really big one in the Himalayas, according to geologists.
Earthquake victims put up a notice for help on the walls of a temple after last week's earthquake in Bhaktapur, Nepal, on May 2, 2015.
An innovative company called Terra Seismic, believes that it has an answer, and more importantly believes that earthquakes can be predicted 20-30 days before they occur. While the firm has had a number of successes, it is clear that it is not perfect as it has not been able to detect every earthquake – such as the recent Nepal earthquake.


Pradeep Gupta, CMD, CyberMedia Group welcoming Dr Arvind Gupta, National Head Information Technology, BJP.
Google, the global search giant, has adapted its Person Finder tool to help friends and relatives of the victims of a devastating earthquake that struck the Himalayan country of Nepal Saturday. Conversely, an individual in the quake-stricken can advise friends or relatives that they are safe or provide other relevant information via the app, assuming that person has access to the Internet, a large assumption in the current circumstances. For example, just three weeks ago before the quake happened, a team of French and Nepali geologists discovered that 8.0 magnitude earthquakes struck in 700 year cycles. According to a study by the Netherlands-based International Institute for Geo-information Science and Earth Observation, this augments the damage caused by severe earthquakes. Therefore, the region is susceptible to soil liquefaction.
Consequently, one landmass slides above the other giving rise to a shock-wave called an earthquake. First of all, it recorded 7.8 on the Richter scale and was reported to be one of the most powerful earthquakes to strike the region in the past 80 years. These are not enforced, so almost no one knows such earthquake-resistant standards and guidelines for home-owners exist. Many of the houses built in Bhuj after the Gujarat quake of 2001 are now earthquake-resistant. People work near collapsed houses after last week's earthquake in Bhaktapur, Nepal 2 May 2015. While past data is useful, predicting a earthquake is immensely difficult as it means analyzing not only past data but also predictors which show the probability of an earthquake. This data is then combined with a huge number of earthquake precursors such as ground water level changes, sudden clouds, bizarre behavior of animals, birds and fishes, changes of the ground conductivity, geomagnetic and gravity anomalies, electromagnetic emissions, anomalous atmospheric electric field, geochemical aberrations such as excessive emissions of radon, hydrogen, helium, carbon dioxide, methane and other gases and fluids, and variations in seismic waves velocities.
People gather near a collapsed house after a magnitude-7.8 earthquake in Kathmandu, Nepal, April 25, 2015. The app allows individuals to post details and to search for the status of friends or relatives they believe were affected by the earthquake.
Scientists say that while it is possible to identify the key regions where earthquakes can occur, it is impossible to predict the exact time when they would occur.


While geologists and scientists have been studying the patterns, the huge number of parameters that have to be looked at for arriving at a conclusion, make predicting earthquakes a near impossible task. One week after a massive earthquake wrought destruction across Nepal, the country has ruled out the possibility of finding more survivors under the rubble, authorities said Saturday.
To have greater chances of predicting earthquakes, all diverse parameters have to be brought together and analyzed. Using Big Data and satellite technology, the firm processes large volumes of satellite data which is taken each day from regions where the probability of an earthquake is huge and ground based sensors. More accuracy will help nations prepare more adequately for impending disasters, save lives and lessen the huge economic losses that are caused by earthquakes.
Algorithms built by the firm then analyze this combined data to judge the probability of an earthquake. Officials declared a state of emergency, saying the total earthquake death toll in the country had grown to almost 1,000 people, according to BBC News. Nearly 1,000 Europeans are missing in Nepal following the earthquake, a European Union official reportedly said. The Web application, launched in 2010 after a massive quake in Haiti, was created to help families and first responders gather and relay information about missing people to loved ones. Once a record is no longer relevant, an individual user can remove information from the database. Barring rare exceptions, such as the Delhi Metro, India's hastily-built cities are open to great damage from earthquakes.



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