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 23,2020

Bengaluru, Apr 22: Former Chief Minister and the Opposition Leader in the Karnataka Assembly Siddaramaiah appealed the state government not to discriminate the poor on political lines while distributing relief package to the COVID-19 affected people in the state.

He was speaking to newsmen after attending a grocery kits distribution programme, organised in Jayanagar Assembly constituency, which was represented by the Congress MLA and former minister Ramalinga Reddy.

Charging that there are complaints about the state government in discriminating the Congress MLAs represented constituencies in providing relief kits to distribute among the poorer sections in the society, he said that “there should not be no room for politics, while fighting the COVID-19 disease”.

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News Network
February 16,2020

Bengaluru, Feb 16: Deputy chief minister Laxman Savadi’s election to the lone vacant council seat, for which a bypoll has been called, is only a formality as the only other candidate in the contest, independent BR Anil Kumar, dropped out on Saturday.

Kumar conveyed his decision to council secretary and returning officer Vishalakshmi. He decided to withdraw from the February 17 bypoll after failing to get support from Congress and JD(S) legislators.

The bypoll was necessitated after sitting member Rizwan Arshad of Congress resigned as he moved to the legislative assembly as an MLA. Rizwan won the Shivajinagar bypoll in December last year.

“Since the notification on candidates in the fray, after the last date of withdrawal, has already been published, irrespective of any candidate’s retirement, the election has to be conducted,” an official said.

Savadi’s victory was always assured as BJP has 119 members in the House.

Still, Ramanagara BJP district president Rudresh and MP BY Raghavendra reportedly approached Kumar, urging him to withdraw. Kumar, however, denied that he was persuaded by BJP.

“I entered the fray thinking secular parties and likeminded MLAs will support me, but that didn’t happen, so I decided to retire,”he said.

A section of Congress and JD(S) politicians, led by former minister HD Revanna, had persuaded Kumar to enter the contest with the hope that disgruntlement among some BJP legislators over Savadi’s promotion as the deputy CM would result in an upset.

Former chief minister HD Kumaraswamy also offered to support Kumar. Siddaramaiah of Congress refused to do the same. Congress and JD(S) did not field any candidates of their own as they don’t have the requisite numbers in the House.

Savadi must get elected to the council before February 20, otherwise he will lose his cabinet role. According to rules, a person who is not a member of either House should get elected within six months after becoming a minister. Savadi took oath on August 20 last year.

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News Network
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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