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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
March 24,2020

Bengaluru, Mar 24: Underlining the seriousness of the coronavirus, which is spreading like wildfire in Karnataka, renowned Heart Surgeon and founder of Narayana Hrudayalaya Dr Devi Shetty on Tuesday predicted that Karnataka alone will have more than 80,000 people affected with the dreaded killer disease COVID-19 if people fail to protect themselves.

He urged the people to cooperate with the Government in preventing its further spread and immediately treat those who are affected.

Dr Shetty, urging the people to remain indoors and not to venture out, said those who are affected should not come out and remain in isolation even in their houses and take all precautions advised by doctors.

He said if 80,000 people in the state were affected, more than 20,000 need to be admitted to Hospital for treatment.

"More than 2000 affected need to be kept under ventilation and it requires more infrastructure in the hospitals," he said.

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News Network
March 11,2020

Bengaluru, Mar 11: DK Shivakumar has been appointed as the new president of the party's Karnataka unit, an official said on Wednesday.

"Congress president (Sonia Gandhi) has appointed D.K. Shivakumar as the president of the Karnataka Pradesh Congress Committee (KPCC)," said party's general secretary K.C. Venugopal in a statement from New Delhi.

Party's state unit leaders Eshwar Khandre, Satish Jharkiholi and Saleem Ahammed are the working presidents in the southern state.

"Former chief minister Siddaramaiah will continue as the Congress Legislature Party (CLP) leader and opposition leader in the state legislative assembly.

MLC M. Narayanswamy and MLA Ajay Singh will be the party's chief whips in the state legislative council and assembly.

Congress appoints Anil Chaudhary as DPCC chief

The Congress on Wednesday appointed former MLA Anil Chaudhary as its Delhi unit chief, while also naming five vice-presidents for the DPCC.

Congress president Sonia Gandhi named Chaudhary president and Abhishek Dutt, Shivani Chopra, Jaikishan, Mudit Agarwal and Ali Hassan vice-presidents of the Delhi Pradesh Congress Committee (DPCC), a party statement said.

Subhash Chopra had resigned as the Delhi Congress chief in February, taking moral responsibility for the party's debacle in the Assembly polls.

The Congress drew a blank for the second time in a row in the Delhi Assembly polls and reduced its vote share from 9.7 per cent in 2015 to 4.27 per cent this time.

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coastaldigest.com news network
August 5,2020

Mangaluru, Aug 5: Normal life was thrown out of gear as heavy rain and gusty winds lashed large parts of coastal and malnad districts of Karnataka in last 48 hours. Widespread power outages due to tree fall and minor landslides were reported in last 24 hours.

Meanwhile, Indian Meteorological Department has sounded a red alert for Uttara Kannada, Udupi and Dakshina Kannada districts 8:30am of August 5.

In Mangaluru city there were several tree falls disrupting power supply in key areas of the city. Four electricity poles were damaged after a tree fell on Boloor Jarandaya road due to rain and heavy winds. In Neermarga too, there were a couple of tree falls in the morning cutting off power supply, which was not restored till this report was sent.

Mescom bore the brunt of the rains in Udupi and Dakshina Kannada District and at the last count as many as 148 electric poles, 23 transformers and 65 kilometer conductor wires were damaged due to poles being damaged in tree fall and landslides.

Traffic was affected on Charmadi Ghat on the Mangaluru-Chikkamagaluru route due to a tree fall on the second hair pin bend. 

On Monday, landslides near Kottigehara, Chikkamagaluru District, left traffic badly affected. Though normalcy has been restored on the route after blocking the road for restoration till Tuesday morning, locals fear more landslides due to continuous downpour.

Kodagu district too received heavy rainfall in past 24 hours which resulted in water logging in low-lying areas.

In the Coast, Uttara Kannada received the highest amount of rainfall at 91mm, followed by Udupi at 75 and DK at 73mm. The highest Rainfall of 241 mm was recorded at Castlerock, Supa Taluk in Uttara Kannada District.

KSNMDC bulletin stated that widespread moderate to heavy rains associated with strong surface winds at times and isolated very heavy to extreme heavy rains was likely over Udupi, Dakshina Kannada and Uttara Kannada districts It also stated that wind speeds ranging between 50kmph to 60 kmph was forecast along the coast of Karnataka from Mangaluru to Karwar, warning fishermen not to venture into the sea.

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