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 9,2020

Udupi, Jun 9: A Mesolithic site has been discovered at Iduru-Kunjadi in Kundapura taluk of Udupi district of Karnataka by Prof T Murugeshi, Associate Professor of Ancient History and Archaeology at MSRS College, Shirva.

Prof Murugeshi said on Tuesday that the site is near a rock art site of the Mesolithic period that was unearthed. It is located in the Mookambika Wildlife Reserve Forest. At Iduru-Kunjadi, the finds of Mesolithic tools are characterised by blades, scrapers, burine, fluted cores, arrow-heads and flakes of the non-geometric pattern.

He said that though the site was found two years back, it took time to study and identify them. They resembled the tools found in a stratified context at Uppinangady on the Netravati basin, he added.

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June 4,2020

Udupi, Jun 4: Karnataka Medical Education Minister Dr K Sudhakhar on Wednesday said that he will take up an issue before a high-powered committee on COVID-19 to find out the possibility of imposing lockdown on a particular house of the person infected with the virus instead of sealing down of entire areas.

Talking to reporters here on Tuesday after reviewing the district's prevailing COVID situation, the minister said the concept and modalities of declaring any area as containment zone has undergone changes in the last two months.

"Hitherto, we were declaring the entire area as the containment zone after detection of coronavirus positive cases. Subsequently, the area of the containment zone was decreased from the whole area to a particular street," the Minister said.

"Now, BJP MLA Raghupati Bhat has given a suggestion to seal down a particular house of the positive patient which would be taken up before the high-powered panel. The district administration concerned could supply all essential items to the particular family," he said.

He further said that the Union government has been providing all facilities to all the states to deal with the situation."

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April 13,2020

Shivamogga, Apr 13: Banana farmers in Shivamogga say their crop is rotting and they are incurring huge losses amid lockdown due to COVID-19.

The farmers alleged that although permission has been granted for the sale of agricultural products, with inter-district movements being affected, the local buyers are forcing the farmers to sell their produce at ridiculously low prices.

"Local buyers are asking us to sell bananas at Rs 4-5 per kg which is impossible for us. I do not know what we can do," Vijayendra, a farmer told ANI here.

"We expected the markets to be good during the summer season, I have cultivated bananas in four acres of land. There are thousands of other farmers who cultivate it in smaller hoardings," he added.

The farmer further implored the government to ensure there is an open market and inter-district movement of agricultural produce is allowed to ensure the farmers get the right price.

Vijayendra also said that the bananas have started rotting as they were not being harvested due to the lockdown.

Prime Minister Narendra Modi had last month announced a 21-day lockdown in the entire country effective from March 24 midnight to deal with the spread of coronavirus, saying that "social distancing" is the only option to deal with the disease, which spreads rapidly.

There is also the likelihood that the nationwide lockdown might further be extended even after the completion of the 21-day period on April 14, based on the statements from several chief ministers following a video conference with the Prime Minister held a few days earlier.

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