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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
April 25,2020

Bengaluru, Apr 25: With 26 new COVID-19 cases confirmed in the past 24 hours, the total number of positive cases in Karnataka reached 500 on Saturday.

This includes 158 patients who have been cured and discharged following treatment while 18 deaths have been reported so far due to the infection in the State, according to a media bulletin issued by the Department of Health and Family Welfare on Saturday evening.

A total of 324 COVID-19 cases are currently active in the State as of Saturday evening 5 pm.
According to the bulletin, Bengaluru Urban with 133 positive cases, including 49 discharged and four deaths, is the worst-affected district in the State, followed by Mysuru and Belagavi, with 89 and 54 confirmed cases, respectively.

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News Network
April 8,2020

Bengaluru, Apr 8: Till date 181 COVID-19 positive cases have been confirmed in Karnataka including five deaths and 28 discharges, said State Government on Wednesday.

Six new positive cases have been reported from April 7, 5:00 PM to April 8, 12:00 noon, informed Karnataka Government in a bulletin.

Out of the six fresh cases one has been reported from Uttarakannada, two from Kalburgi, one from Mandya, one from Chikkaballapur and one from BBMP Bengaluru.

"In view of breaking the chain and containment of COVID-19, Karnataka State Board of Auqaf, Bengaluru has directed to all the managements not to allow any congregational prayers in the Masajid and the managements of the Qabrasthans (Muslim graveyards) / Darghas throughout the state and to suspend the visit of public on the occasion of SHAB-EBARAT on thursday, April 9," said State Government in its bulletin.

No public shall be allowed to perform religious rituals in the Qabrasthans/Darghas and all the gates of Qabrasthans/Darghas shall be kept closed.

All managements of Qabrasthans/Darghas shall take necessary action on the above directions and all Waqf officers, District Waqf Advisory Committee in state shall adhere to the orders and directed to circulate the same and to ensure the order is followed scrupulously, the State Government added.

India's tally of positive COVID-19 cases stands at 5,194, said the Ministry of Health and Family Welfare on Wednesday.

Out of the 5194 cases, 4,643 are reported to be active while 401 people have recovered or have been discharged and one has migrated. The death toll stands at 149.

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News Network
August 7,2020

Madikeri, Aug 7: Two days after massive landslides triggered by heavy downpour in Kodagu, five people including a priest are still missing. 

The landslide, which originating at Brahmagiri Hills in Talacauvery, swept away two houses on Wednesday night.

This missing people are: Talacauvery temple chief Narayana Achar (70), his wife Shantha (70), brother Ananda Theertha Swami (87) and two assistants — Ravi Kiran (26) and Srinivas (30). Achar’s neighbour had shifted out of Bhagamandala earlier, fearing a landslide. 

The National Disaster Response Force (NDRF) had to stop rescue operations due to bad weather. The operations resumed today. 

“There are many minor landslides on the way to the spot,” said Kodagu Deputy Commissioner C Annies K Joy, adding that the flood situation at Bhagamandala was not permitting earthmovers to reach the spot. Heavy rain between Wednesday and Thursday triggered landslides. 

Bhagamandala Panchayat Development Officer Ashok said a notice was issued to the priest’s family to shift out of the house, but they chose to stay back. 

On Thursday morning, when the Talacauvery temple staff went to check on Narayana Achar, as he had not reached the temple for the daily puja, they found levelled land and debris where Achar’s house stood. Utensils, puja material and clothes were found nearly 2 km away at Cherangala. 

As rains continued over the last few days, many rivers are flowing above the danger levels, forcing people to move to safer places.

 Responding to the situation, which is turning grimmer by the day, Chief Minister B S Yediyurappa, who is currently undergoing treatment in a private hospital after testing positive for Covid-19, directed ministers to visit rain-hit areas and supervise relief efforts. He has also assured of providing required financial assistance for those affected.

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