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
April 15,2020

Bengaluru, Apr 15: As many as 17 new positive cases of COVID-19 have been reported in Karnataka, taking the total number of cases in the state to 277, including 75 discharged and 11 deaths, the state government said on Wednesday.

Of the 17 new cases, nine are workers of a pharmaceutical company in Mysuru, the government stated.

Meanwhile, a 65-year-old from Chikkaballapur, who had tested positive for COVID-19, lost his life on Wednesday.

"He was referred to a Bengaluru hospital with complaints of H1N1 positive, Chronic Obstructive Pulmonary Disease with obstructive sleep apnea and a past history of diabetes and hypertension," the government stated.

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February 3,2020

Mangaluru, Feb 3: After neighbouring reported the second confirmed case of dreaded Coronavirus, the government of Karnataka today ordered high alert across border districts including Dakshina Kannada.

Apart from Dakshina Kannada, district administrations in Kodagu, Chamarajanagar and Mysuru that share boundary with Kerala have been put on high alert over the movement of people with suspected cases.

In a statement released on Monday, the Health and Family welfare department said that these districts have been directed to immediately report to the State Surveillance Unit (SSU) if they come across any suspected cases of people infected with Coronavirus.

Currently, about 51 people who returned from Coronavirus-affected regions have been identified and 46 are under home isolation across Karnataka.

So far, 44 samples have been sent to the National Institute of Virology, Pune for analysis and out of which 29 samples have revealed negative results. Yet, the state government has put in all possible measures to check the spread of the virus in any part of the state.

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July 6,2020

Bengaluru, Jul 6: Karnataka government has revised quarantine norms according to which those entering the State from other states, including from Maharashtra, shall be placed in 14-days home quarantine.

Until now, the state government had issued that those returning from Maharashtra are to be placed under 7-day institutional quarantine followed by 7-day home quarantine.

A fresh state government order with the subject line "Regulation of movement of persons from other States to Karnataka" reads: "Whereas the State Government vide Order dated June 30, issued unlock 2 guidelines which permit reopening of more activities in a calibrated manner, in areas outside the Containment Zones, and to extend lockdown in Containment Zone upto July 31. The guidelines also permit unrestricted interstate movement of persons and goods adhering to the SOPs/ Guidelines issued by the Department of Health and Family Welfare and Department of Revenue (Disaster Management)".

Whereas, the Department of Health and Family Welfare issued revised SOP for the moment of persons from other State to Karnataka vide document dated June 8, this year, further, quarantine norms were modified vide Orders of even number dated June 15 and June 26.

"The quarantine norms are regularly reviewed and calibrated with the prevailing Unlock 2 guidelines and infusion of technology and community involvement to enforce the strict home quarantine. In light of the above, the quarantine norms issued vide Order dated June 26, has been further modified and is follows--Persons coming from other State to Karnataka, including Maharashtra shall be placed in 14-days Home Quarantine," the order read.

"The other conditions as specified in the Order dated June 15 and aforementioned SOP enclosed issued on June 8 by the Department of Health and Family Welfare shall continue to be in force until further orders," it added.

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