How are earthquakes measured and how massive is the Turkey-Syria quake?

News Network
February 6, 2023

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Early Monday morning (February 6), an earthquake of magnitude 7.8 struck south-central Turkey and Northwest Syria, reported AP. Buildings across the region were seen tumbling down, sparking a mad scramble to find survivors in the rubble and amidst an ongoing snow storm in many places.

Early reports have put the number of fatalities over 600 with thousands injured, reported AP. This event is likely to be a humanitarian catastrophe in a region already ravaged with over a decade-long civil unrest and a refugee crisis.

The magnitude of the quake

Many survivors have claimed that this is the strongest quake they have felt in their lives. “I have never felt anything like it in the 40 years I’ve lived”, Erdem, a resident of the Turkish city of Gaziantep, near the quake’s epicentre, told Reuters. Videos of buildings being razed to dust have been circulating on social media.

A magnitude of 7.8 on the Moment Magnitude scale is indeed really strong. According to experts, the quake is the joint largest on record (since roughly 1900) in Turkey. It has the same magnitude as one that killed about 30,000 people in December 1939 in northeast Turkey, tweeted Stephan Hicks, a researcher in seismology at the Imperial College London.

The U.S. Geological Survey (USGS) said the quake was centred about 33 km from Gaziantep, around 18 km deep, reported AP. This is a highly populous region, exponentially increasing the likelihood of casualties. The effects of the quake were felt across West Asia, Northern Africa and South Eastern Europe with residents of Lebanon, Cyprus, Greece, Israel and Egypt also reporting tremors, wrote The Guardian.

Measuring a quake’s magnitude

The earth’s crust is broken up into tectonic plates that are constantly moving, slowly, often getting stuck at their edges due to friction. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth’s crust, resulting in the vibration felt.

A network of seismographs are used to record earthquakes with each individual seismograph recording and measuring the movement of the ground in its location. A seismograph is securely mounted onto the surface of the earth so that when the earth shakes, the entire unit shakes with the exception of the mass on the spring, which remains in its place because of inertia.

During shaking, the recording device on this mass records the relative motion between itself and the rest of the instrument, thus recording the ground motion. According to the USGS, these mechanisms are no longer manual, but instead work by measuring electronic changes produced by the motion of the ground with respect to the mass. 

Measuring the intensity

In many ways, the intensity is an even more important measure of an earthquake as it is related to the tangible impact a quake has. Intensity scales, like the Modified Mercalli Scale and the Rossi-Forel scale, measure the amount of shaking at a particular location.

An earthquake causes many different intensities of shaking, depending on how deep it is located on the earth’s crust and how far it is from its epicentre. Earthquakes of lower magnitude can be more intense if they are located in more shallow ground or if the area where they occur has more loose soil, etc.

The Modified Mercalli Scale, the most commonly used intensity scale, ranks earthquake intensity on a scale of I. (not felt) to XII. (extreme). The maximum intensity measured in today’s Turkey earthquake is IX. or violent – “Damage is considerable in specially designed structures; Damage is great in substantial buildings, with partial collapse. Buildings are shifted off foundations. Liquefaction occurs. Underground pipes are broken”, according to the USGS website.

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News Network
November 13,2024

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Bengaluru: An estimated overall 10.14 per cent voter turnout was recorded during the first two hours, since the voting began for bypolls to three Assembly segments in Karnataka on Wednesday, election officials said.

The voting began at 7 am and will go on till 6 pm.

More than seven lakh voters are eligible to cast their votes in about 770 polling stations in Shiggaon, Sandur and Channapatna, where a total of 45 candidates are in the fray.

While Channapatna recorded 10.34 per cent voter turnout till 9 am, it was 10.08 per cent in Shiggaon, and 9.99 per cent in Sandur, election officials said.

Voters, including women and elderly were seen queuing up in front of polling booths in these segments.

By-polls for Sandur, Shiggaon, and Channapatna are necessitated, as the seats fell vacant following the election of their respective representatives -- E Tukaram of Congress, former CM Basavaraj Bommai of BJP, and Union Minister H D Kumaraswamy of JD(S) -- to Lok Sabha in May elections.

As many as 31 candidates are in the fray from Channapatna, while Sandur and Shiggaon have six and eight contenders, respectively.

Elaborate security arrangements have been made in the three segments for the smooth conduct of the polls.

The by-polls will witness a straight fight between the ruling Congress and BJP in Sandur and Shiggaon segments, while in Channapatna, JD(S) which is part of the NDA alliance is in contest against the grand old party.

Among the three segments, Channapatna is considered to be a "high profile", where the contest is between C P Yogeeshwara, a five time MLA from the segment and former Minister, who joined the Congress quitting BJP ahead of nomination, and actor-turned -politician Nikhil Kumaraswamy, who is Kumaraswamy’s son and former PM H D Deve Gowda's grandson.

BJP's Bharath Bommai, son of Basavaraj Bommai, is fighting Congress Yasir Ahmed Khan Pathan, who had faced defeat against the former Chief Minister in the 2023 Assembly polls, in Shiggaon.

Bharath Bommai and his father cast their vote at a polling booth in Shiggaon segment.

In Sandur, Bellary MP Tukaram's wife E Annapurna of Congress is contesting from the seat vacated by her husband, against, BJP ST Morcha president Bangaru Hanumanthu, who is considered close to party leader and former mining barron G Janardhan Reddy.

Annapurna, Tukaram and other family members cast their votes at a booth in the segment.

With Nikhil Kumaraswamy and Bharath Bommai contesting, the third generation of Gowda and Bommai families are in the fray in this by-poll. Both their fathers and grandfathers have served as Karnataka's Chief Ministers in the past.

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News Network
November 19,2024

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In the wake of the tragic drowning of three students at a resort near Ullal on the outskirts of Mangaluru city, the tourism department in Dakshina Kannada is set to implement comprehensive safety guidelines for properties with swimming pools or beach access. This initiative aims to ensure guest safety and prevent similar incidents in the future.

New Safety Mandates for Resorts and Homestays

Rashmi S.R., deputy director (in-charge) of the tourism department, announced, “We will instruct all homestays and resorts to enforce precautionary measures, especially those with pools or direct beach access. Properties must ensure 24/7 supervision, particularly during guest hours. This tragedy highlights the importance of having trained personnel on-site.”

Key Safety Guidelines

The district, home to around 150 homestays and 130 resorts, will see the following measures enforced:

  • Clearly displaying pool depths.
  • Installing adequate safety equipment, such as life buoys.
  • Employing trained lifeguards at all times.
  • Establishing clear pool operating hours.
  • Reviewing and implementing standard operating procedures (SOPs) for pool and beach usage.

Booming Beach Tourism Calls for Vigilance

Manohar Shetty, president of the Association for Coastal Tourism (ACT), Udupi, highlighted the growing popularity of beachside resorts, particularly during peak seasons. Properties in Udupi, often fully booked with tourists from Bengaluru, Mysuru, Kodagu, and Shivamogga, face increasing pressure to maintain safety standards.

Udupi district boasts 22 beachside commercial properties catering to this rising demand.

Shetty emphasized, “Authorities must scrutinize safety measures and carefully evaluate guidelines before issuing new resort licenses. Panchayats should rely on the Karnataka Town and Country Planning Act when handling such cases.”

Long-Term Solutions for Water Safety

Recognizing the need for a cultural shift in water safety, Shetty proposed integrating swimming lessons into school curricula. This move would not only equip students with essential skills but also encourage safe participation in water-based activities.

A Safer Tomorrow for Coastal Tourism

As the tourism sector thrives, Mangaluru’s proactive approach underscores its commitment to visitor safety. The tragic incident serves as a wake-up call, propelling the industry towards stricter regulations and better preparedness, ensuring that coastal vacations remain both enjoyable and safe.

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News Network
November 14,2024

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The UN special rapporteur for Palestine has slammed Israel’s parliament for passing a law authorizing the detention of Palestinian children, who are “tormented often beyond the breaking point” in Israeli custody.

Francesca Albanese, the UN special rapporteur on the rights situation in the Occupied Palestinian Territory, in a Thursday post on X, characterized the experiences of Palestinian minors in Israeli detention as extreme and often inhumane.

The UN expert highlighted the grave impact of this policy, noting that up to 700 Palestinian minors are taken into custody each year, a practice she described as part of an unlawful occupation that views these children as potential threats.

Albanese said Palestinian minors in Israeli custody are “tormented often beyond the breaking point” and that “generations of Palestinians will carry the scars and trauma from the Israeli mass incarceration system.”

She further criticized the international community for its inaction, suggesting that ongoing diplomatic efforts, which often rely on the idea of resuming negotiations for peace, have contributed to normalizing such human rights violations against Palestinian children and the broader population.

The comments by Albanese came in response to Israel’s parliament (Knesset) passing a law on November 7 that authorizes the detention of Palestinian children under the age of 14 for “terrorism or terrorist activities.”

Under the legislation, a temporary five-year measure, once the individuals turn 14, they will be transferred to adult prison to continue serving their sentences.

Additionally, the law allows for a three-year clause that enables courts to incarcerate minors in adult prisons for up to 10 days if they are considered dangerous. Courts have the authority to extend this duration if necessary, according to the Knesset.

The legislation underscores a shift in the treatment of minors and raises alarms among human rights advocates regarding the legal and ethical ramifications of detaining children and the conditions under which they may be held.

Thousands of Palestinians, including hundreds of children and women, are currently in Israeli jails—around one-third without charge or trial. Also, an unknown number are arbitrarily held following a wave of arrests in the wake of the regime's genocidal war on Gaza.

Since the onset of the Gaza war, the Israeli regime, under the supervision of extremist minister Itamar Ben-Gvir, has turned prisons and detention centers into “death chambers,” the ministry of detainees and ex-detainees’ affairs in Gaza says.

Violence, extreme hunger, humiliation, and other forms of abuse of Palestinian prisoners have been normalized across Israel’s jail system, reports indicate.

Over 270 Palestinian minors are being detained by Israeli authorities, in violation of UN resolutions and international treaties that forbid the incarceration of children, as reported by Palestinian rights organizations.

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