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.

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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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May 14,2020

Bengaluru, May 14: As many as 22 new cases have been reported in Karnataka taking the total number of positive cases in the state to 981. 

The new cases include five in Bengaluru Urban - all with a contact history, four each in Gadag - with history of travel to Ahemadabad, Mandya with travel history to Mumbai, Maharashtra and Bidar - with three from containment zone and one with travel history to Mumbai, three from Davangere and one each from Belagavi and Bagalkote.

Meanwhile, two more deaths have been reported in the state on Thursday morning taking the total toll to 35. This is apart from a non-COVID-19 death.

An 80-year-old resident of Dakshina Kannada, got admitted at private hospital following a stroke. She was shifted to the icu on confirmation for Covid-19 at a designated hospital on April 26. She died on Thursday due to septic shock.

Another 60-year-old male, resident of Ananthapur in Andhra Pradesh, admitted at Victoria Hospital in Bengaluru with severe pneumonia and respiratory distress died due to cardiac arrest on Thursday morning. He had hypotension and Diabetes Mellitus, according to the morning health bulletin.

Sources in Victoria Hospital said this person was the first patient to undergo clinical trial for plasma therapy. He was infused plasma on Monday. However, his condition continued to remain the same.

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News Network
July 17,2020

Bengaluru, July 17: The government of Karnataka has decided to issue caste and income certificates to Brahmins in the state to reduce the socio-economic inequality faced by the community.

“A notification has been issued to tehsildars in all 30 districts to issue caste and income certificates to Brahmins so that they can also benefit from the government schemes and scholarships,” a Revenue Department official told said.

The notification comes a month after the Karnataka State Brahmin Development Board on June 10 appealed to Chief Minister B.S. Yediyurappa to issue the certificates to the traditionally dominant community, which accounts for 3 per cent of the 7 crore state population.

“Though Brahmins are in ‘minority’ in terms of their population across the state, they need caste and income certificates to benefit from the welfare schemes meant for the economic weaker sections such as SC, ST and OBC groups,” the official said.

The board was set up in March 2019 as a state-run company with Rs 5 crore authorised capital and Rs 5 crore equity and is registered with the Registrar of Companies.

The notification was issued to the local bodies and taluk offices after several members of the community complained to state Revenue Minister R. Ashoka that they were unable to benefit from the welfare schemes in the absence of the certificates.

The certificates will also help students from the community to avail scholarships for higher studies from the state-funded board if their gross annual family income is less than Rs 8 lakh per year.

The board has also urged the state government to implement the 10 per cent quota for its community members under the economically weaker sections, as applicable for Central government jobs and admissions to central institutions.

Noting that every community has people who are forward and backward economically for various reasons, including historical, the official said the board would be empowered to serve the Brahmins.

“The board will provide interest-free loans to the financially weaker sections of the community,” said its Chairman H.S. Sachidananda Murthy.

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News Network
April 23,2020

Mangaluru, Apr 23: An astronomical phenomenon, ‘Zero Shadow Day', will be observed in Mangaluru on April 24 and in Udupi on April 25. 

According to a press release from Poornaprajna Amateur Astronomers’ Club, the wonder will commence and people will see their shadows disappear for a few moments at 12:28 pm.

The phenomenon is called as Zero Shadow Day. If a person takes a candle in a dark room and use it to create a shadow of one’s palm on the wall, the hand will cast shadow on the wall as one moves the hand. But when one places the palm on the wall, there will be no shadow.

In the phenomenon, the sun at these times shines exactly above the heads on these days. In astronomy, this point is called as Zenith. The point in the sky directly above an observer at any given location. So it is quite clear now that on Zero Shadow Day, the sun passes through the Zenith as a result of which, all objects will have minimal or no shadow if they are on the ground.

The reason for this happens on some specific days is concerned with astronomy. The earth spins around on its own axis and causes days and nights. It also revolves around the sun causing a year. But the seasons are caused because the axis is tilted at an angle of 23.5 degrees. It is because of this tilt that the sun rises every day in the east gradually moving towards the north till June 21st and then slowly proceeding towards the south till December 21st every year. “We call these days solstice. This means the sun shines between the Tropic of Cancer and Tropic of Capricorn every day passing by the equator on the days we call equinox,” the release stated.

As the earth moves around the sun and revolves on its own axis, for all the people between Tropic of Cancer and Tropic of Capricorn, the Sun at noon moves father and closer to the zenith passing through zenith twice causing two Zero Shadow Days per year. People at Mangaluru will observe this on April 24 and August 18 every year and People in Udupi will observe this on April 25 and August 17 every year.

Places with same latitudes will observe the same days of Zero Shadow but the time would vary with longitude. For example, people of Bengaluru as they share the latitude with Mangaluru will also observe it on April 24. While the people of Mangaluru will observe their shadows disappear at 12.28pm, people of Bengaluru will observe this at 12:17pm. Places like Moodabidri, Bantwal, Sakleshpur and Hassan will also observe Zero Shadow on April 24.

Places like Brahmavar, Karkala, Sringeri, Kudremukha, Chikkamagaluru will observe the Zero Shadow Day on the same day as Udupi on April 25.

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