An earthquake registering 6.2 Mw caused the deaths of at least 1,000 people in Afghanistan and Pakistan.
June 2022 Afghanistan earthquake
A 4.0-kilometre (2.5 mi) deep earthquake measuring magnitude (Mw ) 6.2 struck southeastern Afghanistan on 22 June 2022 at 01:24:36 AFT. The earthquake had a maximum Modified Mercalli intensity of IX (Violent). There were 1,052–1,163 deaths and 1,627–2,976 injured in Afghanistan and Pakistan. The worst affected provinces in Afghanistan were Paktika, Paktia, Khost and Nangarhar. Casualties and damage also occurred in Pakistan's Khyber Pakhtunkhwa. At least 10,000 homes collapsed or were severely damaged. The earthquake's shallow hypocenter, proximity to populated areas and low building quality contributed to its destructive effects. Shaking was felt over 500 km (310 mi) away by at least 119 million people, including Pakistan's Punjab and parts of India and Iran.
Moment magnitude scale
The moment magnitude scale is a measure of an earthquake's magnitude based on its seismic moment. Mw was defined in a 1979 paper by Thomas C. Hanks and Hiroo Kanamori. Similar to the local magnitude/Richter scale (ML ) defined by Charles Francis Richter in 1935, it uses a logarithmic scale; small earthquakes have approximately the same magnitudes on both scales. Despite the difference, news media often use the term "Richter scale" when referring to the moment magnitude scale.