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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April 21,2020

Bengaluru, Apr 21: Karnataka cabinet on Monday decided to continue the COVID-19 lockdown measures currently in force in the state till May 3 without any relaxation, Law and Parliamentary Affairs minister J C Madhuswamy said.

However, leaving a window open, it authorised chief minister B S Yediyurappa and the COVID-19 Task Force to meet in three or four days to review and take further decision about any relaxation, he told reporters.

"Today cabinet has decided it (the norms) will be extended up to May 3... there will be no relaxation and the situation that that exists as of today will continue," he said.

Pending the cabinet decision, chief secretary T M Vijay Bhaskar had on Sunday issued fresh orders directing the continuation of the stringent lockdown measures issued by the Ministry of Home Affairs till the midnight of April 21.

Meanwhile, five new coronavirus cases have been confirmed in Karnataka, taking the total number of infections in the state to 395, the Health department said on Monday.

"Five new positive cases have been reported from last evening to this noon... Till date 395 COVID-19 positive cases have been confirmed. This includes 16 deaths and 111 discharges," the department said in its mid-day situation update.

All the five fresh cases are from Kalaburagi and contacts of patients who have already tested positive.

Four of them are men of age 17, 13, 50 and 19, and one woman aged 30.

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News Network
May 8,2020

New Delhi, May 8: After deadly styrene gas leak in Visakhapatnam, Union Chemicals and Fertilisers Minister D V Sadananda Gowda urged all public and private chemical makers to exercise caution and care while reopening their plants.

Union Environment Ministry and State Pollution Control Boards have also issued separate directives to all companies to take extreme precaution while restarting their units that remained suspended due to the lockdown imposed to contain the spread of COVID-19 in the country, he said.

There was a gas leak from LG Polymers plant at Visakhapatnam in the early hours on Thursday, causing 10 deaths and hundreds of people getting hospitalised.

"LG Polymers does not come under direct control of our ministry. However, we have asked all public and private chemicals manufacturers to exercise caution and care while reopening their plants," Gowda told PTI.

The minister said his officers are coordinating with the Andhra Pradesh government.

He further said LG Polymers, a multinational chemical company, had kept its unit ready for reopening after one and half month of lockdown. The unit started leaking at around 3.40 am on Thursday due to pressure.

"The toxic gas leak has affected both people and animals. Around 850 people have been hospitalised," Gowda said, adding that measures have been taken to control the situation at the plant site and final updates are awaited.

At present, Indian chemicals market size is about USD 163 billion, which is only three per cent of the global chemical industry of USD 5 trillion, as per the official data.

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March 24,2020

Udupi, Mar 24: Four people, including two women, suspected to have infected with Coron were admitted to the hospitals in Udupi district

According to the District Administration, in all, 51 samples were sent to the laboratory for test and 40 samples have been tested negative.

The result of remaining 11 swabs were awaited.

At least 21 people had been admitted to the isolation wards of hospitals in the district. Nine had been discharged from the isolation wards after they recovered from the health complications on Monday, it further said.

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