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
April 17,2024

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Russian President Vladimir Putin says Iran’s “tactful and wise” response to Israeli aggression on its consulate in Syria was the best way to punish the aggressor.

Putin made the remarks in a phone conversation with President Ebrahim Raeisi on Tuesday.

“What the Islamic Republic of Iran did in response to what happened criminally and in the light of the inaction of the [UN] Security Council, was the best way to punish the aggressor and represented the tactfulness and rationality of Iran's politicians,” Putin said.

The Russian president said the Israeli regime’s “terrorist act” against the Iranian consulate in Damascus was against all international standards and rules.

He also strongly criticized the United States and certain Western countries for creating tension in the region. “We believe that the Islamic Republic of Iran is one of the main pillars of stability and security in the region.”

“We firmly declare that we will respond to any action against Iran's interests with greater force and broader and more painful than the previous [response],” President Raeisi said in the phone call.

The Iranian president also said Tehran's response to the Israeli regime was within the framework of international law, saying Israel’s terrorist act was a clear violation of international law and a serious threat to global peace.

“The destructive role of the US and some western countries and the inaction and inefficiency of international institutions, including the United Nations and the Security Council, in dealing with the aggressive action of the Zionist regime in attacking the Iranian consulate in Syria caused the Islamic Republic of Iran to exercise its right to self-defense.”

Raeisi further thanked Moscow for its “principled and constructive” stance against the Israeli aggression in Damascus. 

He appreciated the diplomatic efforts of the Russian government to thwart the conspiracies of the United States and certain Western countries in the UN Security Council.

“To those countries that have adopted double standards in the face of the crimes of the Zionist regime and express concerns about escalating tensions in the region, we advise them to rather stop supporting the Zionists genocide and crimes against the oppressed Palestinian people to preserve peace and stability in the region,” Raeisi said.

Iran’s Islamic Revolution Guards Corps (IRGC) launched extensive missile and drone strikes against the occupied territories late on April 13 in response to Israel’s missile attack on the consular section of the Iranian embassy in Damascus.

Operation True Promise has inflicted damage on Israeli military bases across the occupied territories. The extent of damage is yet to be specified. 

Brigadier General Mohammad Reza Zahedi, a commander of the IRGC Quds Force, his deputy, General Mohammad Hadi Haji Rahimi, and five of their accompanying officers were assassinated in the Israeli attack on Iran’s diplomatic mission.

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News Network
April 27,2024

The spokesman for the Yemeni Armed Forces has said it has carried out new operations against American and British targets in retaliation for their aggression on the country.

Brigadier General Yahya Saree said on Friday that Yemen’s naval forces struck a British oil tanker in the Red Sea with missiles.

Saree also said the military also shot down an American MQ-9 drone in Sa’ada province.

He added that the new operations were also a show of solidarity with Palestinians in the Gaza Strip, amid the Israeli genocide there. 

“The Yemeni Armed Forces salute all the people of Yemen for their faithful response to the call of the fighter leader Sayyed Abdulmalik Badr El-Din Al-Houthi, may Allah protect him, in their unprecedented large-scale interaction in support of our oppressed brothers in the Gaza Strip, affirming support for the Armed Forces in their military operations against the ‘Israeli’ enemy and against the American-British aggression supporting it in the Red and Arabian Seas and the Indian Ocean,” Saree said.

He stressed that the Yemeni armed forces will continue operations in the Red and Arabian Seas as well as the Indian Ocean until the Western-backed Israeli genocide comes to a halt.

Since the start of the brutal campaign in Gaza, the regime has killed more than 34,300 Palestinians and injured over 77,000 others. It has cut off fuel, electricity, food and water to the more than two million Palestinians living there.

The Yemeni Armed Forces have been targeting Israeli vessels or those “associated” with the occupying regime in the Red Sea and the Arabian Sea since October 7, 2023.

The regime ignited its bloody war machine in the besieged Palestinian territory on that October day in response to Operation Al-Aqsa Storm conducted by the resistance movement Hamas.

The maritime attacks have forced some of the world’s biggest shipping and oil companies to suspend transit through one of the world’s most important maritime trade routes.

Tankers are instead adding thousands of miles to international shipping routes by sailing around the continent of Africa rather than going through the Suez Canal.

The pro-Palestine maritime campaign has also prompted airstrikes by the US and its allies on Yemen – in violation of the Yemeni sovereignty and international law.

In consequence, Yemen’s armed forces have declared US and British vessels as legitimate targets.

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News Network
April 20,2024

Union Finance Minister Nirmala Sitharaman, on Friday, said that the Bharatiya Janata Party (BJP) plans to reintroduce electoral bonds in some capacity following extensive consultations with all stakeholders, should it come back to power in the 2024 general elections, according to a report in the Hindustan Times (HT).

HT cited Nirmala Sitharam as saying, “We still have to do a lot of consultation with stakeholders and see what is it that we have to do to make or bring in a framework which will be acceptable to all, primarily retain the level of transparency and completely remove the possibility of black money entering into this.”

However, the Centre has not yet decided whether to seek a review of the ruling made by the Supreme Court (SC), she said.

She further added, “What the scheme, which has been just thrown out by the Supreme Court, brought in was transparency. What prevailed earlier was just free-for-all.”

Launched in 2018, electoral bonds were accessible for acquisition at any State Bank of India (SBI) branch. Contributions made through this programme by corporations and even foreign entities via Indian subsidiaries received full tax exemption, while the identities of the donors remained confidential, safeguarded by both the bank and the recipient political parties.

On February 15, a five-judge Constitution Bench struck down the scheme, deeming it ‘unconstitutional’ due to its complete anonymisation of contributions to political parties. Additionally, the Bench stated that the articulated objectives of curbing black money or illegal election financing did not warrant disproportionately infringing upon voters’ right to information.

FM Sitharaman said, some aspects of the scheme need improvement and they will be brought back following consultations.

She also lashed out at the Opposition’s claims that the BJP disregarded criminal charges against leaders who switched from other parties to join the ruling party.

The HT quoted her as saying, “The BJP can’t sit here and say, you come to my party today, and the case will be closed tomorrow. The case has to go through the courts that have to take a call; they will not just say, “Oh, he’s come to your party, close the case.” Doesn’t happen that way. So is this washing machine a term they want to use for the courts?”

She further said that the Union government plans to simplify the process of taxation and make it easy for investments to come through into the country.

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