2022 Afghanistan-Pakistan border earthquake

Article

July 5, 2022

The earthquake on the Afghan-Pakistani border occurred on June 22, 2022 at around 01:30 local time in eastern Afghanistan in the provinces of Paktika and Khost on the border with Pakistan. At least 1051 people lost their lives.

Earthquake

According to the United States Geological Survey, the earthquake had a magnitude Mw of 5.9 and an intensity of 7.2 (very strong) on ​​the Modified Mercalli scale. The hypocenter was located at a depth of 10 km. The epicenter was about 46 km southwest of the city of Khost in the province of the same name. An aftershock with a magnitude of 4.5 occurred a few kilometers south of the first epicenter at 2:20:25 local time (21:50:25 UTC) at 33.036 °N and 69.529 °E (⊙). Another, smaller magnitude 4.3 aftershock struck Pakistan on June 24 at 01:43:28 UTC. The epicenter was 49 km west of Miranshah at 33.017°N and 69.538°E (⊙). In Paktika province, the districts of Ziruk, Nika and particularly severely affected were Gayan with at least 238 fatalities and Barmal with about 500 fatalities. At least 29 people were killed and 20 injured in the Spera district of Khost province. One person died in Pakistan. In total, at least 1051 people lost their lives. In addition, over 3,694 people were injured and numerous houses in the affected provinces were destroyed. According to the United Nations Office for the Coordination of Humanitarian Affairs, there were up to 1,800 houses (70%) in Gayan. In Pakistan, two houses in Lakki Marwat district were damaged. Many animals also died. The earthquake is also said to have been felt in neighboring provinces including the capital Kabul, as well as in Islamabad in Pakistan and in India. It is the deadliest earthquake in Afghanistan in 20 years. The poorly built houses in Afghanistan are often the cause of earthquakes to numerous fatalities, as in 1998, when two earthquakes killed more than 6300 people in total, or the Hindu Kush earthquake in 2015, in which about 400 people died. An earthquake in January 2022 killed 27 people. The June 2022 earthquake was also about 500 km north-northeast of the 2008 Pakistan earthquake of magnitude Mw 6.4, which killed 215 people.

Tectonics

Structurally, Afghanistan lies on the boundary between the Indian and Eurasian plates. The Indian plate is moving north at about 4 cm/year. In the north of the Indian subcontinent, it subducts under the Eurasian Plate and forms some of the world's highest mountain ranges, including the Himalayas, Karakorum, Pamir and Hindu Kush. To the west and south of the Himalayas, the relative movement between the two plates is at an oblique angle, resulting in strike faults, normal faults, and combinations of both in this area.

Web Links

Earthquake in Afghanistan, Shake Map, 2022-06-21, June 22, 2022 M 5.9 - 46 km SW of Khōst, Afghanistan, United States Geological Survey Tectonic Summary: Seismotectonics of the Himalaya and Vicinity, United States Geological Survey Afghanistan: Earthquake - Jun 2022, ReliefWeb

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