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Mangaluru prone to earthquakes, says survey

[email protected] (DHNS)
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 28,2020

Bengaluru, Apr 28: Former Karnataka chief minister Siddaramaiah on Tuesday suggested that the government can allow sale of liquor in green zones. 

“Merely because there is an economic slowdown in the state, I don’t recommend that alcohol should be allowed to be sold. But, wherever there are green districts, they can open (liquor sale) with certain restrictions, I think,” Siddaramaiah, the leader of the Opposition, told reporters. 

There are 14 districts in the state that are categorised as green because they do not have any active COVID-19 cases. The green districts are: Yadgir, Raichur, Koppal, Haveri, Davangere, Shivamogga, Chitradurga, Udupi, Chikmagalur, Hassan, Kodagu, Chamarajanagar, Ramanagara and Kolar.

There is tremendous pressure on the B S Yediyurappa administration to revive the economy as the lockdown has dried up all revenue sources. Excise, alone, accounts for 18 per cent of Karnataka’s own tax revenue. 

The Excise department recently suggested allowing regulated sale of liquor through the state-run MSIL outlets. The government, however, did not approve it fearing crowding and backlash from the Centre.

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News Network
March 16,2020

Bengaluru, Mar 16: Hundreds of people gathered to felicitate the newly appointed Karnataka Pradesh Congress Committee president DK Shivakumar in Bengaluru on Monday.

"Everyone is a team, I'm not alone. We all are together and we will work together," Kumar had said after his appointment.

Shivakumar was appointed as the chief of Karnataka Congress last week on Wednesday.

Party leaders Eshwar Khandre, Satish Jarkiholi and Saleem Ahmed were appointed working presidents of the Karnataka Pradesh Congress Committee.

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News Network
April 5,2020

Udupi, Apr 5: Excise Department has formed a special patrol teams to check the illegal sale of liquor in the district during the lockdown period.

All liquor stores are closed till April 14 in view of the lockdown to contain Covid-19 spread. However, reports of liquor being sold illegally have come to the notice of the Excise Department.

In a stern warning, the department has stated that officials will verify the closing and opening stock at the liqour stores and if any discrepancy is found the violators will be penalised. The department has received over 20-30 calls regarding the illegal sales.

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