Mangaluru prone to earthquakes, says survey

May 6, 2015

Mangaluru, May 6: According to an experts survey, it has been found that buildings in Bejai-Balmatta, Attavar -Hampankatta, have not adhered to IS 1893 : 2002, Part 1, which is the criteria for earthquake resistant design of structures, NITK?Civil Engineering Department Professor D Venkat Reddy said.

He was delivering a talk on ‘Earth, oceans and coastal zone management’, organised by Institution of Engineers (India) local centre an Institution of Valuers Mangalore Branch in Mangaluru.

mangalurucity

The city falls in seismic zone-3 which means that the quakes of intensity six could occur. The buildings could withstand the earthquakes up to five in the Richter scale. As per Indian Standards on Earthquake Engineering, IS1893:1984 criteria for Earthquake Resistant Design of Structures, the country has been categorised into five seismic zones, based on the seismic intensity. IS is about earthquake resistant design of structures and is applicable to buildings, and other structures such as bridges, dams etc. Earthquakes of magnitude of eight take place in zone five. Nethravathi and Gurupur river basins are tectonically active.

As observed in Nepal, the structural failure of buildings have caused more amount of damage. In contrast, the Pashupathinath Temple is intact, though the building in its surrounding have been badly effected, which is due to the difference in structural pattern.

He further said that seismic waves alone are not responsible . Seismic activities take place round the clock. The earthquakes take place due to the sudden failure of strata. As per an estimation, around one thousand take place across the world everyday and three of them could be serious.

A lineament which is a fault in the underlying geological structure and the constructions on these lineaments such as railway tracks, bridges etc could cause more danger. IIS?has established a network system which records the seismic activities and which can even record 0.1 mm change in the crest of the earth. As per the movement of earth plates, a region will be displaced in a span of hundred years.

Comments

Arjun Neil Menezes
 - 
Tuesday, 20 Feb 2018

I'm building a 1story house with slab on load bearing walls instead of the concrete frame structure. Will this be resistant agaianst earthquakes?

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News Network
June 15,2020

Mangaluru, Jun 15: The case of two elderly Dubai returnees who are being treated for Covid-19 at the Wenlock Covid-19 Hospital has left doctors perplexed.

The two aged 76 and 81 men had arrived from Dubai on May 18 and 12 respectively and are at the hospital since one month. 

To everyone's surprise, six of their tests have come out positive though they have not shown any symptoms of SARS-CoV-2.

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News Network
January 8,2020

Bengaluru, Jan 8: The all-India shutdown by trade unions and other organisations began with little impact in the tech city as normal life continued on a working day, an official said.

"No effect of shutdown in the city though banking operations are affected as bank staff are supporting the trade unions," a state official said here.

However, thousands of workers participated in other parts of Karnataka in the nation-wide shutdown call given by trade unions, protesting central government's anti-labour laws and privatisation policies.

Protesters were seen carrying the red trade union flags at several places such as Hassan, Chamarajanagar, Tumakuru, Mysuru, Bengaluru and others.

Massive protests were seen in Peenya, and Neelmangla areas of Bengaluru.

In Madikeri, stones were pelted at a bus and some protesters were detained in Kolar.

The trade unions are against the privatisation of railways and corporatisation of 49 defence production units.

Merging 44 labour laws into four code is also one of the demands of the protesting trade unions.

The protesters are demanding raising the minimum wage in the range of ₹21,000 - 24,000 per month.

The All India Trade Union Congress (AITUC), Centre of Indian Trade Unions (CITU), Indian National Trade Union Congress and Labour Progressive Federation (LPF) have given an all-India shutdown (Bharat Bandh) call on Wednesday.

Karnataka Chief Minister B.S. Yediyurappa instructed the intelligence chief and additional director general of police Kamal Pant to maintain law and order in view of the Bharat bandh when he apprised him of the situation.

Police tightened security across the city by deploying 11 deputy commissioners of police (DCPs), 23 assistant commissioners of police (ACP), 111 inspectors, 316 sub-inspectors, 476 assistant sub-inspectors, 4,547 constables along with 82 platoons of Karnataka State Reserve Police (KSRP).

In Bengaluru city, Metro services were not affected by the nationwide strike. In view of the shutdown, security was beefed at the Metro stations.

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News Network
January 29,2020

Newsroom, Jan 29: Karnataka’s capital has earned the unwelcome distinction of global capital of traffic congestion. According to a report by TomTom, the Netherlands-based global provider of navigation, traffic and map products, Bengaluru beat 415 other cities across 57 countries to earn the title of world's most traffic congested city in 2019.

“Bengaluru takes the top spot this year with drivers in the southern Indian city expecting to spend an average of 71% extra travel time stuck in traffic," TomTom said in the ninth edition of its annual Traffic Index.

Three other Indian cities, namely, Mumbai, Pune and New Delhi are also ranked in the 2019 edition of TomTom’s Traffic Index of the world’s most traffic-congested cities. 

The report released on Tuesday ranks cities by the average time added to a trip. TomTom index also includes details on when congestion is heaviest and lightest, how highways compare with surface streets, and how much time drivers wasted waiting for other drivers to get out of their way.

Following closely on the heels of Bengaluru is Manila, Philippines, with the similar 71% traffic congestion. Among the top five worst traffic affected cities are Mumbai and Pune from India at the fourth and fifth place respectively, while Bogota, Colombia is on third spot.

Delhi, the national capital of India is on the 8th spot, while Moscow (Russia), Lima (Peru), Istanbul (Turkey) and Jakarta (Indonesia) are on 6th, 7th, 9th and 10th spot respectively.

Mumbai recorded a 65% traffic congestion with 9th September, 2019 being the worst day. On an average, a Mumbaikar lost 209 hours in traffic congestion. Pune has 59% traffic congestion with 2nd August, 2019 being the worst day. 193 hours are lost due to congestion. Delhi, on the other hand, has 56% traffic congestion. 23rd October, 2019 was the worst day, while 190 hours are lost in traffic congestion.

Interestingly, among all the four Indian cities, Delhi has the most number of cars. Previous studies have concluded that Delhi has the best road conditions among the Metro cities of India.

If you are wondering what exactly the percentages mean, a 53% congestion level in Bangkok, for example, means that a trip will take 53% more time than it would during Bangkok’s baseline uncongested conditions.

TomTom calculates the baseline per city by analyzing free-flow travel times of all vehicles on the entire road network – recorded 24/7, 365 days a year. The report by Dutch navigation and mapping company ranks cities by the average time added to a trip. It also includes details on when congestion is heaviest and lightest, and how much time drivers wasted waiting for other drivers to get out of their way.

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