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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February 4,2020

Bengaluru, Feb 4: A 33-year old woman techie allegedly stabbed her mother to death and made a murderous assault on her younger brother before fleeing their home here, police said on Tuesday.

According to police, the woman fatally stabbed her mother using a knife and attacked the brother early on Monday.

The injured brother has been hospitalised here.

A search was on for the techie and the motive for her action under investigation, police said.

The woman, employed as a software engineer with a company here, earlier had told her mother and 30-year old brother that she has been transferred to Hyderabad and she may have to relocate.

The brother told police that in the early morning on Monday he saw his sister searching something desperately and offered to assist, which she refused.

However, minutes later she made a murderous assault on him, he told police, adding when he screamed for help and called his mother, his sister said she has killed their mother.

She stabbed him and attacked with an iron rod before fleeing, her brother told police.

The body of the mother was found in another room in the house.

"We are still investigating the matter. We are not clear about the motive behind the murder," a police officer told media adding the woman was yet to be arrested.

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March 26,2020

Bengaluru, Mar 26: Karnataka Primary and Higher Education Minister Suresh Kumar on Thursday clarified that the SSLC examinations have not canceled as being claimed by many. 

Taking to Twitter, he said there was confusion among students and parents as wrong news was published in a some of the news papers and even in social media also.

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March 31,2020

Mangaluru, Mar 31: With the Dakshina Kannada district administration relaxing the lockdown from 6 am to 3 pm to purchase essential commodities, panic-stricken citizens rushed to the shops early in the morning itself.

The citizens had formed a serpentine line in front of shops and supermarkets in different parts of Mangaluru and on the outskirts of the city to purchase their requirements.

As a precautionary measure, many were seen wearing masks.

“In spite of waiting in a long queue to purchase, we are not able to get the required essential commodities. Why can’t the district administration ensure enough stock of commodities in the shops and supermarkets,’’ asked a customer who had stood in a queue outside a supermarket at Chilimbi.
People were seen crowding outside markets at Kankanady, Mallikatte, Urwa and Central Market, violating the purpose of social distancing.

Consequently, vegetable prices have increased in the markets and shops. This is despite abundant stocks being available in these markets.

Trucks had unloaded the vegetables at Central Market on Sunday, according to sources. The prices of onions are skyrocketing yet again and is sold from Rs 50 to Rs 55 while a kg of carrot costs Rs 100.

"Why can’t the authorities check the rise in the price of vegetables and ensure that the poor are not inconvenienced," asks Lakshmi, a housewife.

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