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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 22,2020

Madikeri, Apr 22: The quality of water in the River Cauvery in Kodagu district has improved significantly following the nationwide Lockdown.

The discharge of effluents from home stays and resorts situated on the banks of the river in the district has stopped due to lack of visitors. The discharge of waste water had made the river impure all these years.

The suspension of boat ride in Dubare has reduced the pollution from diesel motorboats in the river. For the last few years, the water quality of the river had reached 'C' category from 'B' category during the summer.

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News Network
April 16,2020

Bengaluru, Apr 16: The Karnataka government on Wednesday identified 14 departments as essential and asked all its employees to attend work during the extended period of lockdown to check coronavirus spread in the state.

According to a circular issued by Chief Secretary TM Vijay Bhaskar, all classes of officials/employees in these departments must attend to their work.

The departments are: Health and Family Welfare, Medical Education, Home, Revenue, Rural Development and Panchayat Raj, Urban Development, Food, Civil Supplies and Consumer Affairs, Information and Public Relations, Transport, Energy, Personnel and Administrative Reforms (e-Governance), Finance (including treasuries), Animal Husbandry and Fisheries and Forest, Ecology and Environment.

In all other departments, only Group-A officers have been directed to report for duty.

However, those visually-impaired or physically-

handicapped are exempt from work, the circular said, adding that this norms will be valid till April 19.

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coastaldigest.com news network
July 13,2020

Mangaluru, July 13: Nalin Kumar Kateel, MP of Dakshina Kannada, has appealed the chief minister to give nod to impose a week-long lockdown in the coastal district in the wake of mounting coronavirus cases.

Mr Kateel, who is also the president of Karnataka BJP, participated in a video conference with chief minister BS Yediyurappa along with Deputy Commissioner Sindhu B Rupesh and district in charge minister Kota Srinivas Poojary.

The final decision about the lockdown in the district will be taken following a meeting under the leadership of the deputy commissioner, wherein the elected representatives of the district will express their opinions.

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