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
January 6,2020

Jan 6: A Thane resident lost a little over Rs 1 lakh in an online fraud involving popular payment gateways, police said on Saturday. The complainant, a resident of Patlipada, wanted to sell his furniture and posted an ad on Facebook on December 21, an official said.

On December 24, he received a call from one Rajendra Sharma who offered to buy the furniture and wanted to transfer the amount through payment gateways — Paytm and Google Pay, he said.

However, instead of the money getting credited to his account, the complainant found that Rs 1.01 lakh were debited from him during three transactions on two payment gateways, the official said.

The complainant realised that he had been cheated when the accused assured that he would return the money and asked him for another account number, he added.

An offense has been registered against the unidentified accused under section 420 (cheating) of the Indian Penal Code and Information Technology Act and further investigations are underway, he said.

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News Network
May 11,2020

Bengaluru, May 11: Ten new positive cases of COVID-19 have been confirmed in Karnataka, taking the total number of infections in the state to 858, the Health department said on Monday.

"Ten new positive cases have been reported from last evening to this noon... Till date 858 COVID-19 positive cases have been confirmed. This includes 31 deaths and 422 discharges," the department said in its mid-day situation update. 

The ten new cases include- three from Davangere, two each from Bidar and Bagalkote, one each from Kalaburagi, Shiggavi in Haveri and Vijayapura. Seven cases are men, three are women.

While most cases are contacts of patients already tested positive, one each are with travel history to Mumbai and Ahmedabad.

One person's contact tracing is underway. 

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News Network
April 5,2020

Bengaluru, Apr 5: The COVID-19 related lockdown has substantially improved the air quality of Bengaluru, taking it from satisfactory level to good, a senior state pollution control board offcial said here on Sunday.

"During the course of the lockdown 19 problem, we reached good position from satisfactory.

It is between zero to 50 AQI (Air Quality Index) now. We have good quality air," the Karnataka State Pollution Control Board member secretary Basavaraj Patil told PTI.

He said the indicator for knowing the air quality in

"If the AQI is zero to 50 then it is good. If it is 50 to 100 then it is satisfactory. 101 to 150 is moderate and if it is 151 to 200, then it is poor, he explained.

Patil said as per available recrods, there has been a 60 to 65 per cent reduction in pollution during the lockdown.

The city railway station and Peenya industrial area, which used to be among the areas with highest AQI, has seen pollution levels come down significantly, he said.

Another major contributor of pollution was construction activities, which too had ground to a halt due to the lockdown, resulting in zero dust emission.

Patil opined that the improved air quality would boost the immune system of the people.

"It will improve the immune system of people, including those who have breathing problems like asthma," he said.

He asked the public to learn lessons from the lockdown and later switch to sustainable means of transport such as public transport, walking and cycling,.

"We can still reduce the pollution load even after the lockdown is over," Patil said.

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