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
April 13,2020

Bengaluru, Apr 13: Karnataka Pradesh Congress Committee (KPCC) President and former Minister D K Shivakumar has demanded resignation of Minister In-Charge of COVID-19 for his alleged irresponsible comment, despite holding a responsible post.

Mr Shivakumar's comments came after Dr Sudhakar on Sunday shared a picture of him and his children in a swimming pool, on Twitter with a caption, ''After a long time joined my children for swimming hope maintaining social distance here as well…hahaha.''

However, Dr Sudhakar deleted the tweet from his account, soon after he was criticised for sharing such a picture, when the country is facing a health crisis.

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News Network
July 19,2020

Bengaluru, Jul 19: Three legislators of the opposition Congress in Karnataka, including 2 MLAs and 1 MLC tested positive for coronavirus and are under treatment, a party official said on Saturday.

"Our Bailhongal MLA Mahantesh Koujalgi in Belagavi district and Humnabad MLA Rajashekhar Patil and his MLC brother Chandrashekhar Patil in Bidar district tested positive for the infection and are under treatment at designated hospitals," party spokesman Ravi Gowda told media persons in Bangaluru.

Koujalgi's swab sample was taken on Friday after he showed signs of illness and its result turned positive earlier in the day.

"As Koujalgi attended a review meeting at Bailhongal, about 20 officials who participated in the meeting have been home quarantined," said Gowda.

Koujalgi is the second lawmaker in the state's northwest region to test positive after BJP's Belagavi North assembly segment MLA Anik Benake tested positive for the virus on July 15.

"Patil brothers were in self quarantine after meeting BJP's Bidar Lok Sabha member Bhagwanth Khuba, who tested positive on Wednesday. Their tests also showed they were infected with the virus," Gowda said.

Congress MLC Sandesh Nagaraj, who tested positive on Friday, is under treatment at a private hospital in Mysuru.

Dakshina Kannada district Youth Congress president Mithun Rai is in institutional quarantine in Bengaluru after he tested positive for the infection.

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News Network
February 11,2020

Bengaluru, Feb 11: Onion price dropped to Rs 25-30 per kg on Monday, down from the dizzying Rs 200/kg in December and January. The price had spiked because of excess rain, which ruined the crop in several parts of the country.

With supply stabilising, especially from Maharashtra and northern Karnataka, and exports banned, the rate is now easing, officials said.

Consumers may be smiling but farmers are worried as they are not able to make more than Rs 17/kg as against the expected Rs 40.

"We get onions from Nasik and Sholapur in Maharashtra. Nasik onions used to be exported but since that is currently banned, they are landing in Bengaluru, leaving the market here with a surplus," said K Lokesh, president, Karnataka State Onion Merchants Association.

A farmer from Sholapur wh o was part of a onion growers' delegation which met traders in Bengaluru, said, "The cost of everything has gone up. Labour charges and fuel prices are draining us. How can we survive? How can I pay for my children's education?"

Another Sholapur farmer rued: "My daughter's wedding is in March. How am I going to meet all the expenses? I have to pay for labour, transportation, gunny bags and when everything adds up, I don't get to save more than Rs 30,000 in a month."

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