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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
June 16,2020

Bengaluru, Jun 16: Karnataka Pradesh Congress Committee (KPCC) chief DK Shivakumar's daughter Aishwarya and Cafe Coffe Day founder late VG Siddhartha's son, Amarthya Hegde got engaged at SM Krishna Residence, Sadashivanagar in Bengaluru on Monday.
Only family members were present in the event. Amarthya Hegde is also the grandson of former Union Minister SM Krishna.
Last year in July, the body of Cafe Coffee Day (CCD) founder Siddhartha was unearthed on the banks of Netravati river.

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News Network
March 18,2020

Mysuru, Mar 18: Even though the migration season is coming to end and the winged visitors are set to fly back, the water bodies where most birds nest and breed are under close surveillance with the report about spread of bird flu in Mysuru as unusual death of birds can be a cause for worry and hence the authorities are on high alert.

At Karanji Lake, the birds are watched in detail twice – morning and evening. If any sick bird or dead bird is noticed, the Zoo Vets are alerted. So far, no such birds had been sighted. The surveillance data is maintained every day. Intensive surveillance and passive surveillance is done.

Zoo Authority of Karnataka (ZAK) Member Secretary B P Ravi said the birds are doing well and there is no cause for worry with their health monitored constantly along with tests on the bird droppings done every month at the National Institute of High-Security Animal Diseases in Bhopal.

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News Network
April 13,2020

Bengaluru, Apr 13: Karnataka Chief Minister BS Yediyurappa today held a review meeting with his cabinet colleagues and senior officials regarding prevailing coronavirus situation and several other important issues in the state.

Chief Secretary TM Vijay Bhaskar was also present at the meeting. The possible situation once the COVID-19 lockdown is lifted was discussed along with the financial status of the state government and how to mobilise additional resources, sources said.

The Chief Minister also appealed to sugar factory owners to clear the pending payment to the tune of Rs 2834 crore to farmers in 11 districts. He also said that the government has released Rs 45 crore compensation to farmers for loss of paddy crop in Raichur and Koppal District due to hailstorm based on a report submitted by District Collectors.

Amid the lockdown distribution of free milk to the poor will also be continued for one more week, sources added.

The meeting also decided to speed up disposal of cases related to the regularisation of unauthorised constructions which are pending before the High Court and Supreme Court.

In addition to this, the government is planning to auction more than 12,000 corner sites lying idle in Bengaluru. An amendment to the law governing permission to allow sites in private and co-operative housing societies will be made. Hundreds of societies are waiting for approval from the government for releasing the sites, sources said.

It was also decided to utilise Rs 1,000 crore available at Rajiv Gandhi Health University to upgrade medical college hospitals.

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