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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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coastaldigest.com news network
May 30,2020

Bengaluru, May 31: The coronavirus related fatalities in Karnataka rose to 49 with the death of a 47-year-old woman while 141 new coronavirus cases were confirmed on Saturday taking the infection tally to 2,922, Karnataka minister S Suresh Kumar said.

Among the fresh cases, 90 are inter-state passengers, he told reporters.

The deceased woman from Bidar was admitted on May 24 and died on May 28 at a designated hospital in Bidar, Kumar, minister for primary and secondary education and spokesperson for Covid-19 in the state, said.

The woman was diagnosed with influenza like illness with a history of paralysis and was bed-ridden besides having hypertension and convulsions, Kumar said.

According to him, the total cases include 997 discharges, 1,874 active cases, 49 Covid-19 deaths and two non-Covid related deaths.

Of the total active cases, 15 are in the ICU, he added.

The new cases comprise 33 in Bengaluru, 18 in Yadagir, 14 in Dakshina Kannada, 13 each in Udupi and Hassan, 11 in Vijayapura, 10 in Bidar, six in Shivamogga, four each in Davangere and Haveri, three in Kolar, two each in Kalaburagi, Mysuru, Uttara Kannada, Dharwad, and one each in Belagavi, Chitradurga, Tumakuru and Bengaluru Rural, the health department said in its bulletin.

The minister said the government has issued an order regarding relaxation of curfew on Sundays.

According to the order issued by Chief Secretary T M Vijay Bhaskar, there will not be any curfew on Sundays throughout the day following requests from people.

As per the previous order, curfew was from 7 am to 7 pm on Sundays.

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News Network
June 1,2020

Manglauru, Jun 1: The southwest monsoon has made an onset over Kerala, marking the commencement of the four-month long rainfall season, the India Meteorological Department said on Monday.

"The southwest monsoon has made an onset over Kerala," IMD director general Mrutyunjay Mohapatra said.

The four-month monsoon season from June to September accounts for 75 per cent of rainfall in the country.

Private forecaster Skymet Weather on May 30 had declared arrival of monsoon, but the IMD had differed, saying conditions were not ripe then for such an announcement.

Orange alert

Meanwhile, coastal Karnataka’s Dakshina Kannada district, which is receiving sporadic rains for past couple of days, is on orange alert.

Deputy Commissioner Sindhu B Rupesh declared the orange alert following IMD’s prediction of heavy rainfall in the region.

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News Network
May 12,2020

Bengaluru, May 12: Chief Minister B S Yediyurappa had promised to extend all co-operation for the safe and early return of the Karnataka ex-pats, living in the United Arab Emirates (UAE), here on Tuesday.

He was speaking to the Karnataka ex-pats living in UAE, who had pleaded the chief minister to make arrangements for their return to the state.

Those who had spoken to the Chief Minister had informed that there is a large number of people, landed into a great difficulty ever since the onset of the COVID-19 pandemic and eager to return to their home state, Karnataka.

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