2022 Guatemala earthquake explained

2022 Guatemala earthquake
Timestamp:2022-02-16 07:12:25
Anss-Url:us7000gl8w
Isc-Event:622036563
Local-Date:February 16, 2022
Local-Time:01:12:25 UTC-6
Magnitude:6.2
Depth:83.60NaN0
Affected:Guatemala
Landslide:Yes
Casualties:3 dead, 2 injured[1]

The 2022 Guatemala earthquake occurred on the early morning of February 16, 2022 in the southern regions of Guatemala. The quake measured a moment magnitude of 6.2 and reached a peak intensity of VI (Strong) on the Modified Mercalli Intensity scale.[2] Damage was widespread but light in and around the capital, Guatemala City, resulting mostly in cracked walls and rockslides.[3] [4]

Tectonic setting

The coastline of Guatemala lies above the convergent boundary where the Cocos Plate is being subducted beneath the North American Plate or Caribbean Plate along the line of the Middle America Trench. Earthquakes associated with this plate boundary include the 7.4 2012 Guatemala earthquake that ruptured the plate interface, and the 6.9 2014 Mexico–Guatemala earthquake caused by faulting within the subducting Cocos Plate. The northern part of the country hosts the Motagua Fault and Chixoy-Polochic Fault, accommodating left-lateral strike-slip movement on the transform boundary between the North American and Caribbean plates. The Motagua Fault was the source of many destructive earthquakes in Northern Guatemala, most notably the 1976 Guatemala earthquake with a magnitude of 7.5 .[5] [6]

Earthquake

The earthquake had a preliminary magnitude of 6.8 according to local seismological agencies but was later revised to 6.2 in the moment magnitude scale by the United States Geological Survey (USGS). The quake, at a depth of 83.6 km (52 mi), reached a peak intensity of VI (Strong) on the Modified Mercalli intensity scale.

Modified Mercalli intensities in selected locations[7]
LocationsPopulation exposure
Nueva Concepción441,000
Quetzaltenango, Guatemala City, Escuintla4.62 million
Chimaltenango, Santa Ana13.4 million

Damage and casualties

The earthquake caused damage in seven departments of the country. It damaged or destroyed 39 houses and buildings in and around the capital, Guatemala City, and caused multiple landslides blocking roads near the mountains. Three people suffered fatal heart attacks, one each in Mixco, Quetzaltenango, and Baja Verapaz, while two people, including a minor, suffered injuries.[8] [9] [10]

See also

Notes and References

  1. Web site: Risklayer Explorer. risklayer.com. https://archive.today/20220218033443/https://www.risklayer-explorer.com/impact?page=1. February 18, 2022. live. February 17, 2022.
  2. Web site: February 16, 2022. M 6.2 - 0 km SSE of Nueva Concepción, Guatemala. 2022-02-16. earthquake.usgs.gov. https://archive.today/20220216111920/https://earthquake.usgs.gov/earthquakes/eventpage/us7000gl8w/executive. 2022-02-16. live.
  3. Web site: Reportan temblor de 6.8 grados este 16 de febrero de 2022 en Guatemala – Prensa Libre. 16 February 2022 . 2022-02-16. es-GT. https://archive.today/20220217041232/https://www.prensalibre.com/guatemala/comunitario/temblor-de-hoy-16-de-febrero-de-2022-en-guatemala-breaking/. 2022-02-17. live.
  4. Web site: República.gt. En imágenes: daños producidos por el terremoto en Guatemala de este 16 de febrero. 2022-02-16. República.gt. es. https://archive.today/20220217041923/https://republica.gt/guatemala/en-imagenes-danos-producidos-por-el-sismo-en-guatemala-de-este-16-de-febrero-20222168380. 2022-02-17. live.
  5. Aubouin. Jean. Stephan. Jean Francois. Renard. Vincent. Roump. Jacqueline. Lonsdale. Peter. 1981-11-12. Subduction of the Cocos plate in the Mid America Trench. Nature. en. 294. 5837. 146–150. 10.1038/294146a0. 29451269 . 1981Natur.294..146A . 204999690 . 1476-4687. 2022-02-17. 2022-02-17. https://web.archive.org/web/20220217005543/https://www.nature.com/articles/294146a0. live.
  6. Web site: 2006-04-21 . USGS Earthquake Hazards Program » Historic Earthquakes . 2022-02-16 . https://web.archive.org/web/20060421092334/https://earthquake.usgs.gov/regional/world/events/1976_02_04.php . 21 April 2006 . dead.
  7. Web site: 2022-02-16. PAGER. en. USGS. 2022-02-18. https://web.archive.org/web/20220218021636/https://earthquake.usgs.gov/realtime/product/losspager/us7000gl8w/us/1645082195867/onepager.pdf. February 18, 2022. live.
  8. News: Menchu. Sofia. 2022-02-16. Guatemala earthquake kills two, triggers landslides. en. Reuters. 2022-02-17. https://web.archive.org/web/20220216123117/https://www.reuters.com/world/americas/guatemala-earthquake-triggers-rockfalls-uproots-trees-2022-02-16/. 2022-02-16. live.
  9. Web site: Sismo de 6.2 grados deja a tres muertos en Guatemala. primerahora.com. 16 February 2022 . es. February 17, 2022. https://web.archive.org/web/20220217014032/https://www.primerahora.com/noticias/mundo/notas/sismo-de-62-grados-deja-a-tres-muertos-en-guatemala/. 2022-02-17. live.
  10. Web site: Temblor en Guatemala: qué originó el temblor de 6.8 grados que sacudió gran parte del territorio nacional este 16 de febrero. 16 February 2022 . Prensa Libre. es. February 18, 2022. https://web.archive.org/web/20220216202759/https://www.prensalibre.com/guatemala/comunitario/temblor-en-guatemala-que-origino-el-temblor-de-6-8-grados-que-sacudio-gran-parte-del-territorio-nacional-este-16-de-febrero-breaking/. 2022-02-16. live.