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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June 5,2020

New Delhi, Jun 5: Congress has named Mallikarjun Kharge as its candidate for ensuing biennial elections to the Rajya Sabha from Karnataka.

Party interim president Sonia Gandhi approved Kharge's candidature on Friday, according to a Congress release by general secretary Mukul Wasnik.

The elections to fill the pending 18 Rajya Sabha seats from seven states will be held on June 19.

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June 18,2020

Bengaluru, Jun 18: Examination for PU II English paper, which was postponed for more than three months due to threat of Coronavirus, was held on Thursday across the state.

The authorities were forced to postpone the examination of the English subject, scheduled in March, abruptly due to the threat of Covid-19 which spread like wildfire and has so far claimed lives of more than 100 in the state.

There are over 1,016 examination centres across the state. All the students were put to thermal scanners and were ensured wearing face masks. Each centre has sanitisers. Those with cold, cough and fever were assigned a separate room.

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January 7,2020

Bengaluru, Jan 7: Slogans of ‘Inquilab Zindabad’ rent the air at Town Hall on Monday evening as thousands of students, social activists, lawyers, doctors and theatrepersons among others staged a protest to denounce Sunday’s attack on the students and faculty of New Delhi’s Jawaharlal Nehru University (JNU).

“This is unacceptable. As students living in hostels, we are now worried about our safety,” said Prakruthi Kishore, a student of National Law School of India University (NLSIU), Bengaluru.

Rishi Kumar, a student of Indian Institute of Science, pitched in. “JNU is an extremely protected university located in the national capital. It’s surprising that such an incident occurred amid tight security.”

Delhi police and the government need to wake up and take stringent action against the goons, Kumar said, adding: “Students can’t be treated like puppets. The government needs to act immediately.”

“The government is behaving shamelessly by sending goons to threaten students and professors of JNU,” said Alokanath Pandit, a lawyer.

With “Zor se bolo-azadi, tum din me maaro-azadi, hum raat me ayenge-azadi,” drowning the cacophony of traffic at the intersection, the sloganeering reached a crescendo around 6pm as the protesters raised their hands in a show of solidarity with the beleaguered JNU community.

Theatrepersons Prasanna and Arundathi Nag, farmer leader Kodihalli Chandrashekar and social activists Tara Krishnaswamy and Srinivas Alavilli were present at the protest venue. “It is not fair that educational institutions are now becoming the target. First, they hiked fees and now they are attacking students. What is the government doing,” Arundathi asked.

“JNU has always been an institution which has raised its voice against atrocities across the country as its students harbour no fear. This is an alarm bell for the country and the government to wake up. Students are the future and can’t be targeted,” she added.

Chandrashekar said Narendra Modi is unfit to be the Prime Minister as he doesn’t keep his word. “Modi said he will help farmers but has done nothing for them. He said he will provide employment to students but is now making them furious,” he said.

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