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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July 19,2020

Bengaluru, Jul 19: A man protested in front of Karnataka Chief Minister BS Yediyurappa's residence on Saturday alleging lack of medical care claimed the life of his one-month-old infant girl, police said on Saturday.

Venkatesh sat with the baby's photograph in front of the Chief Minister's house, saying the girl developed health issues on July 11 and he rushed her to a hospital, but it turned him away, the police said.

He said he had approached about a dozen hospitals and all of them refused to provide the baby any medical care. Eventually, the baby died.

This forced Venkatesh to hold a protest to draw the Chief Minister's attention to the issue, the police said.

The demonstration drew public attention and a few people joined him in the protest, they said.

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February 18,2020

Bengaluru, Feb 18: Passengers of the Ahmedabad bound GoAir flight had a providential escape when the engine of the aircraft while on the roll of take-off hit by a foreign object at the Kempe Gowda Bengaluru International Airport on Tuesday.

'The right engine of GoAir flight G8 802 from Ahmedabad to Bengaluru is suspected to have suffered from foreign object damage (FOD) while on take-off roll,' an official statement said.

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February 24,2020

Bengaluru, Feb 24: Census authorities in Karnataka have requested deputy commissioners in the state’s districts to hold outreach and awareness campaigns about the National Population Register (NPR), as they fear misgivings about the exercise could hurt the forthcoming enumeration of population.

The house-listing phase of the Census and updating of NPR will be rolled out simultaneously by mid-April in the BJP-ruled state.

About 1,50,000 enumerators will handle the massive exercise.

Officials believe widespread awareness will help address concerns about the NPR data-gathering process and make people cooperate with enumerators when they visit houses for both NPR and census work.

“Sensing the kind of questions that enumerators may face when they do house visits, in all video conferences with deputy commissioners of districts, we have requested to establish contact with local representatives,” SB Vijay Kumar, director of Census Operations in Karnataka told news agency. “We have asked them to organise outreach programmes to ensure that people’s doubts are resolved before the information gathering work begins,” he added.

Census operations are handled by the Union home ministry. Several district officials are said to have raised concerns about the possibility of people refusing to share information when the work on the census and NPR begins in two months. This would affect the quality of the census work, making the exercise incomplete.

news channel earlier reported that people in parts of Karnataka had declined to share personal information with officials visiting households in connection with government programmes, suspecting them of gathering data for the yet-to-be unveiled National Register of Citizens, following enactment of the Citizenship Amendment Act (CAA) recently.

Kumar said district authorities will train and sensitise enumerators to tread carefully while gathering information. Enumerators will be told not to demand information but seek it gently.

“We will tell enumerators to proactively engage with people. For instance, if an old man in a village does not know his exact date or place of birth, the enumerator may engage in a conversation with the person that may elicit some anecdotes and roughly establish the year and the place of birth,” the census director said.

As of now, the NPR questionnaire has 21queries, but officials say it has not yet been finalised.

With most of the census and NPR data gathering and storage happening digitally this time, the challenge before census officials is to convince people that the data would remain safe.

“Individual data is sealed and all that we can see is collective data. The information is consolidated and tailor-made. We are telling district officials to create awareness about data safety as well,” Kumar said.

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