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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: A woman employee at the Vikasa Soudha, next to Vidhana Soudha, the State Secretariat, was tested positive for COVID-19 on Tuesday.

Hence the authorities sealed the Food Department offices, which was in the ground floor of the building.

Employees of Vidhana Soudha and Vikasa Soudha were shocked after learning that one of their colleagues tested positive for the dreaded killer coronavirus.

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News Network
April 28,2020

Bengaluru, Apr 28: Former Karnataka chief minister Siddaramaiah on Tuesday suggested that the government can allow sale of liquor in green zones. 

“Merely because there is an economic slowdown in the state, I don’t recommend that alcohol should be allowed to be sold. But, wherever there are green districts, they can open (liquor sale) with certain restrictions, I think,” Siddaramaiah, the leader of the Opposition, told reporters. 

There are 14 districts in the state that are categorised as green because they do not have any active COVID-19 cases. The green districts are: Yadgir, Raichur, Koppal, Haveri, Davangere, Shivamogga, Chitradurga, Udupi, Chikmagalur, Hassan, Kodagu, Chamarajanagar, Ramanagara and Kolar.

There is tremendous pressure on the B S Yediyurappa administration to revive the economy as the lockdown has dried up all revenue sources. Excise, alone, accounts for 18 per cent of Karnataka’s own tax revenue. 

The Excise department recently suggested allowing regulated sale of liquor through the state-run MSIL outlets. The government, however, did not approve it fearing crowding and backlash from the Centre.

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News Network
March 22,2020

Bengaluru, Mar 22: People here stayed at their homes due to Janata Curfew on Sunday amid the coronavirus scare.

Prime Minister Narendra Modi had on Thursday urged people to stay at their homes as a precautionary measure against the spread of coronavirus.

"In such difficult times, all Indians are supporting the cause. We accept and obey the Prime Minister's orders wholeheartedly as it is about how we protect ourselves and keep our children safe from this disease," said Shashikant Varma, a resident of Bengaluru.

"We hope the situation gets better at earliest and everyone gets rid of the virus," Varma added.
"All the shops have been closed.Everyone is at their homes to avoid getting infected from this deadly virus," said Harish Niwasi, another resident.

"Today is PMs Janata Curfew and so we all are at home. I appeal to all that by staying at home we can save each other from the deadly virus. We thank the PM for guiding us at such difficult times," said Tulsi Ram Varma.

The Janata curfew which began at 7 am today will come to an end at 9 pm.

Till now, the total number of positive coronavirus cases in Karnataka is 15 out of which one person has been cured and one death has taken place in the state, according to the Health Ministry.

The Karanataka Health Department on Saturday confirmed five new coronavirus cases in the state, taking the total count to 20.

According to the Indian Council of Medical Research (ICMR), till now there are 341 positive cases of coronavirus in the country.

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