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 24,2020

Udupi, Apr 24: While several state governments and NGOs are actively working to provide essentials to the needy amid the COVID-19 lockdown, a fisherwoman in Karnataka's Udupi has proved that even a small gesture of help for others can make a huge difference in the society.
A fisherwoman, Sharadakka, distributed rice to 140 needy families in her neighbourhood during the ongoing lockdown. The contribution was made by spending all her life savings amounting to Rs 30,000. The amount was saved by her over a period of time in an effort to build a house for herself.
On Thursday Udupi Deputy Commissioner G. Jagadeesh visited her and ensured help to build her house.
"Spending her meagre earnings, Sharadakka generously filled many empty stomachs amid the nation-wide lockdown, which is a matter of pride," said the Deputy Commissioner.

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March 29,2020

Mangaluru, Mar 29: The test report of the man from Uppoor in Udupi district, who committed suicide fearing he had contracted coronavirus infection, has returned negative for the virus.

Health department officials in Udupi said the post- mortem test report had shown that he did not have the virus infection and asked the people in the area not to panic.

Gopalakrishna Madivala (56), had hanged himself on Wednesday suspecting he had the disease, leaving a death note to family members asking them to stay safe.

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February 28,2020

Suhaana shuddered with fear as she heard violent banging on her door on Sunday. The atmosphere was charged with communal tension after thousands of ruthless goons supporting contentious Citizens Amendment Act (CAA) launched a bloody onslaught against Muslims in the capital of India.

The family consists of Suhaana (name changed), her partially paralysed husband and two daughters. They are the only Muslim family in Madhuban mohalla of North Ghonda locality in north-east Delhi.

Hearts pounded louder than pounding of the door. Then the banging stopped and noises of men talking loudly came.

"I peeped out from a small window near the kitchen and saw our neighbours standing outside our entrance and arguing with 10-15 unknown people," Suhaana said.

It was the first day of the communal violence, worst in the decades, that fanned out to the entire north-east Delhi over the next three days and claimed at least 42 lives, left over 200 injured and properties worth crores destroyed. The death toll is feared to go up.

Later in the night Suhaana's family moved to one of their Hindu neighbour's house. There are about 30 Hindu households in the mohalla who kept vigil as the atmosphere deteriorated.

The next day, the violence escalated. The neighbours decided to shift Suhaana 's family to Gautampuri for their safety.

Suhaana recounted, "Our neighbours assured us that they are with us but as things were deteriorating, they said they wouldn't be able to protect us if a big mob of hundreds came. They advised us to move to the nearby Gautampuri locality and come back only after things become normal."

Rajkumar Bharadwaj brought the family to Gautampuri in the early hours on February 25.

Anil Gupta, 49, said, "It was tough to rescue them. We were asked by the rioters as to why we were saving the Muslims. But we had to, it is the people of my country who are suffering. It cannot be Hindus or Muslims."

Rajkumar Bharadwaj said, "Their youngest clung to me throughout. After I brought them here at Gautampuri, I felt good. Situation till then was not okay."

On Saturday, some semblance of normalcy returned to parts of north-east Delhi with some people opening their shops amid heavy police presence.

Meanwhile, the morbid sight outside GTB Hospital's mortuary, agonising groans in the hospital wards burnt down houses and shops remind Suhaana and others what they have been spared of.

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