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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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July 8,2020

Manjeshwar, Jul 8: Manjeshwar police arrested a man with 10 Kg of Ganja while fleeing away from a checkpoint at Battippadavu last night.

The police said on Wednesday that since the vehicle did not stop they had to chase it and after going some distance the driver lost control over the steering and it met with an accident.

The police immediately arrested the accused and the ganja was found concealed in a gunny bag.

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News Network
May 22,2020

Bengaluru, May 22: Karnataka Congress delegation met Chief Election Commissioner, Dr B Basavaraju in Bengaluru, urging him to guide Karnataka Government to conduct local body elections and not to allow State government to nominate their party men to the local bodies.

The delegation was led by Congress leader Siddaramaiah and Karnataka Pradesh Congress Committee (KPCC) president D K Shivakumar.

"They (State government) wants to postpone the election, they have a lot of other provisions. We are demanding to protect the law, the government doesn't have the power to interfere in the system. We will not allow the state government to nominate their party men.

The CM and his entire team is responsible for this, they are killing the democracy and Panchayati Raj system of the State," said Shivakumar while speaking to the reporters.

The local body elections were scheduled to take place in the month of March or April, which were postponed in view of the COVID-19 crisis.

However, the date for conducting the local body elections has not been decided yet.

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News Network
April 3,2020

Kasaragod, Apr 3: Kerala reported nine new cases of coronavirus on Friday, with seven from the worst affected Kasaragod district, Chief Minister Pinarayi Vijayan said.

With this, the total number of coronavirus positive cases in the coastal district alone mounted to 136.

Besides, Kasaragod, one case each was detected from Thrissur and Idukki, he told reporters after a COVID-19 review meeting this evening.

Currently, 251 people are under treatment for the virus in the state and 14 were cured today, Vijayan said.

A total of 1.69 lakh people are under surveillence in the state and 706 are in various hospitals.

Two fatalities have been reported from the state so far.

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