paragraph_text: The 1930 Salmas earthquake occurred on in West Azerbaijan Province, Iran. The earthquake, which was among Iran's largest, measured 7.1 on the moment magnitude scale and had a maximum Mercalli intensity of IX ("Violent"). A damaging foreshock occurred fifteen hours prior to the main event and served as a warning to the people that felt it strongly. Reports from seismologists and seismological organizations indicate that up to 3,000 fatalities may have occurred in western Iran and eastern Turkey.

paragraph_text: The island of Guam is 30 miles (50 km) long and 4 to 12 miles (6 to 19 km) wide, 3⁄4 the size of Singapore. The island experiences occasional earthquakes due to its location on the western edge of the Pacific Plate and near the Philippine Sea Plate. In recent years, earthquakes with epicenters near Guam have had magnitudes ranging from 5.0 to 8.7. Unlike the Anatahan volcano in the Northern Mariana Islands, Guam is not volcanically active. However, due to its proximity to Anatahan, vog (i.e. volcanic smog) does occasionally affect Guam.

paragraph_text: The June 2011 Christchurch earthquake was a shallow magnitude 6.0 earthquake that occurred on 13 June 2011 at 14:20 NZST (02:20 UTC). It was centred at a depth of , about 5 km (3 mi) south-east of Christchurch, which had previously been devastated by a magnitude 6.2 M earthquake in February 2011. The June quake was preceded by a magnitude 5.9 M tremor that struck the region at a slightly deeper 8.9 km (5.5 mi). The United States Geological Survey reported a magnitude of 6.0 M at a depth of about 9 km (5.6 mi).

paragraph_text: New Delhi (i/ˌnjuː ˈdɛli/) is a municipality and district in Delhi which serves as the capital and seat of government of India. In addition, it also serves as the seat of Government of Delhi.

paragraph_text: Official figures (as of July 21, 2008 12:00 CST) stated that 69,197 were confirmed dead, including 68,636 in Sichuan province, and 374,176 injured, with 18,222 listed as missing. The earthquake left about 4.8 million people homeless, though the number could be as high as 11 million. Approximately 15 million people lived in the affected area. It was the deadliest earthquake to hit China since the 1976 Tangshan earthquake, which killed at least 240,000 people, and the strongest in the country since the 1950 Chayu earthquake, which registered at 8.5 on the Richter magnitude scale. It is the 21st deadliest earthquake of all time. On November 6, 2008, the central government announced that it would spend 1 trillion RMB (about US $146.5 billion) over the next three years to rebuild areas ravaged by the earthquake, as part of the Chinese economic stimulus program.

paragraph_text: New Delhi has a population of 249,998. Hindi and Punjabi are the most widely spoken languages in New Delhi and the lingua franca of the city. English is primarily used as the formal language by business and government institutes. New Delhi has a literacy rate of 89.38% according to 2011 census, which is highest in Delhi.

paragraph_text: Vounargo () is a village in the municipal unit of Iardanos, Elis, Greece. Since the 2011 local government reform it is part of the municipality Pyrgos. Vounargo was the seat of the former municipality Iardanos. It is situated at the foot of low hills to the north. It is 8 km northwest of Pyrgos, 9 km southeast of Amaliada and 11 km west of Karatoula. In 2011, the population of the village was 778.

paragraph_text: The 2011 Yunnan earthquake was a 5.4 magnitude earthquake that occurred on 10 March 2011 at 12:58 CST, with its epicenter in Yingjiang County, Yunnan, People's Republic of China, near the Burmese border. A total of 26 people died and 313 were injured with 133 in serious condition. China's Xinhua reports that up to seven aftershocks, measuring up to a magnitude of 4.7, followed the initial quake, which caused a total of 127,000 people to be evacuated to nearby shelters. It joined over 1,000 other minor tremors that affected the region in the two preceding months. Following damage surveys, officials reported that 1,039 buildings were destroyed and 4,994 more were seriously damaged. The earthquake occurred one day before a much larger earthquake struck Japan that also formed a tsunami.

paragraph_text: Aiginio (), known before 1926 as Libanovo (), is a town and a former municipality in Pieria regional unit, Greece. Since the 2011 local government reform it is part of the municipality Pydna-Kolindros, of which it is the seat and a municipal unit. The municipal unit has an area of 75.541 km, the community 62.246 km. The population of the municipal unit was 4,869 people and the population of the community was 4,345 people as of 2011.

paragraph_text: The 2003 Boumerdès earthquake occurred on May 21 at in northern Algeria. The shock had a moment magnitude of 6.8 and a maximum Mercalli intensity of X ("Extreme"). The epicentre of the earthquake was located near the town of Thénia in Boumerdès Province, approximately 60 km east of the capital Algiers. The quake was the strongest to hit Algeria in more than twenty years – since 1980, when a magnitude 7.1 earthquake resulted in at least 2,633 deaths.

paragraph_text: The 1905 Tsetserleg earthquake occurred in or near the Tsetserleg Sum of Khövsgöl Province in Mongolia on 9 July 1905. The earthquake has been estimated at 7.9 to 8.3 on the moment magnitude scale.

paragraph_text: On Thursday, September 19, 1985, at 7:19 am local time, Mexico City was struck by an earthquake of magnitude 8.1 on the Richter scale. Although this earthquake was not as deadly or destructive as many similar events in Asia and other parts of Latin America, it proved to be a disaster politically for the one-party government. The government was paralyzed by its own bureaucracy and corruption, forcing ordinary citizens to create and direct their own rescue efforts and to reconstruct much of the housing that was lost as well.

paragraph_text: Paralia (, "Paralía", meaning "beach") is a tourist seaside settlement and a former municipality in the eastern part of the Pieria regional unit, Greece. Since the 2011 local government reform it is part of the municipality Katerini, of which it is a municipal unit. The seat of the municipality was in Kallithea. The 2011 census reported a population of 1,124 for the village of Paralia, and 6,803 for the municipal unit. The municipal unit has an area of 24.344 km, the community 1.849 km.. Paralia Katerinis actually translated "Beach of Katerini" and is the closest beach to the capital city of Katerini.

paragraph_text: Papaflessas (, before 1915: Κοντογόνι - "Kontogoni") is a village and a former municipality in Messenia, Peloponnese, Greece. Since the 2011 local government reform it is part of the municipality Pylos-Nestoras, of which it is a municipal unit. The municipal unit has an area of 42.137 km. Population 1,316 (2011). The seat of the municipality was in Vlachopoulo.

paragraph_text: Stagira-Akanthos () is a former municipality in Chalkidiki, Greece. Since the 2011 local government reform it is part of the municipality Aristotelis, of which it is a municipal unit. Population 8,705 (2011). The seat of the former municipality was in Ierissos, which is also the seat of the municipality Aristotelis. The land area of the municipal unit is 253.373 km². It lies north of the autonomous area of Mount Athos. The Greek philosopher Aristotle was born in the ancient city of Stageira, in the northwest part of the municipal unit.

paragraph_text: New Delhi lies on several fault lines and thus experiences frequent earthquakes, most of them of mild intensity. There has, however, been a spike in the number of earthquakes in the last six years, most notable being a 5.4 magnitude earthquake in 2015 with its epicentre in Nepal, a 4.7-magnitude earthquake on 25 November 2007, a 4.2-magnitude earthquake on 7 September 2011, a 5.2-magnitude earthquake on 5 March 2012, and a swarm of twelve earthquakes, including four of magnitudes 2.5, 2.8, 3.1, and 3.3, on 12 November 2013.

paragraph_text: Ampelokipoi (, "vineyards") is a suburb of the Thessaloniki Urban Area and was a former municipality of the regional unit of Thessaloniki, Greece. Since the 2011 local government reform it is part of the municipality of Ampelokipoi-Menemeni, of which it is a municipal unit. The population was 37381 in 2011, with a land area of 1.803 km². Ampelokipoi is the seat of the new Ampelokipoi-Menemeni municipality.

paragraph_text: New Delhi is governed through a municipal government, known as the New Delhi Municipal Council (NDMC). Other urban areas of the metropolis of Delhi are administered by the Municipal Corporation of Delhi (MCD). However, the entire metropolis of Delhi is commonly known as New Delhi in contrast to Old Delhi.

paragraph_text: Orfani (, formerly Ορφάνιον - Orfanion) is a village and a former municipality in the Kavala regional unit, East Macedonia and Thrace, Greece. Since the 2011 local government reform it is part of the municipality Pangaio, of which it is a municipal unit (municipal unit of Orfano). The municipal unit has an area of 200.862 km. The municipal unit has a population of 5,249, and the village of Orfani has 706 inhabitants (2011). The seat of the municipality was Galipsos.

paragraph_text: As of 2015, the government structure of the New Delhi Municipal Council includes a chairperson, three members of New Delhi's Legislative Assembly, two members nominated by the Chief Minister of the NCT of Delhi and five members nominated by the central government.

Question: What was the magnitude of the earthquake affecting the municipality serving as the seat of government in Delhi in September 2011?
Answer: 4.2-magnitude