1943 Ovalle earthquake
31°25′55″S 71°28′30″W / 31.432°S 71.475°W / -31.432; -71.475[3]
The Coquimbo Region of Chile was affected by a major earthquake on 6 April 1943 at 12:07 local time (16:07 UTC). It had a magnitude of between 7.9 and 8.2 on the moment magnitude scale.[5] It triggered a minor tsunami that caused local damage along the coast. A total of 11 people were killed, including a group of five miners.[1]
Tectonic setting
Central Chile lies above the destructive plate boundary where the Nazca Plate subducts beneath the South American Plate. There have been many large earthquakes caused by rupture along the plate interface. Illapel has been struck by major earthquakes in 1730, 1880, 1943 and 2015.[6]
Damage
The earthquake caused major damage to Ovalle, Illapel, Salamanca and Combarbala.[1] At the La Cocinera copper mine near Ovalle, a tailings dam collapsed, killing five miners.
References
- ^ a b c d National Centers for Environmental Information. "Comments for the Significant Earthquake". Retrieved 13 June 2019.
- ^ Tilmann F.; Zhang Y.; Moreno M.; Saul J.; Eckelmann F.; Palo M.; Babeyko A.; Chen K.; Baez J.C.; Schurr B.; Wang R.; Dahm T. (2015). "The 2015 Illapel earthquake, central Chile: A type case for a characteristic earthquake?" (PDF). Geophysical Research Letters. 43 (2): 574–583. doi:10.1002/2015GL066963.
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: CS1 maint: numeric names: authors list (link) - ^ ANSS. "Chile 1943: M 8.1 - Coquimbo, Chile". Comprehensive Catalog. U.S. Geological Survey. Retrieved 13 June 2019.
- ^ José Fernández; César Pastén; Sergio Ruiz; Felipe Leyton (2018). "Damage assessment of the 2015 Mw 8.3 Illapel earthquake in the North‑Central Chile". Natural Hazards. 96. Springer: 269–283. doi:10.1007/s11069-018-3541-3. S2CID 134198142.
- ^ Beck S.; Barrientos S.; Kausel E.; Reyes M. (1998). "Source characteristics of historic earthquakes along the central Chile subduction zone". Journal of South American Earth Sciences. 11 (2): 115–129. doi:10.1016/S0895-9811(98)00005-4.
- ^ Ruiz S.; Madariaga R. (2018). "Historical and recent large megathrust earthquakes in Chile". Tectonophysics. 733: 37–56. Bibcode:2018Tectp.733...37R. doi:10.1016/j.tecto.2018.01.015.
- v
- t
- e
- El Centro (6.9, May 18)
- Lima (8.2, May 24)†
- Shakotan (7.5, Aug 1)
- Vrancea (7.7, Nov 10) †‡
- New Hampshire (5.3 & 5.6, Dec 20 & Dec 24)
- Sa'dah (5.8, Jan 11) †‡
- Colima (7.7, Apr 15) †
- Andaman Islands (7.7–8.1, June 26)
- Van–Erciş (5.9, Sept 10) †
- Hyūga-nada (8.0, Nov 18)
- Gloria Fault (8.0, Nov 25)
- Chungpu (7.1, Dec 17) †
- Ecuador (7.9, May 14) †
- Wairarapa, New Zealand (7.2, June 24) †
- Guatemala (7.7, Aug 6) †
- Peru (8.2, Aug 24) †
- Niksar–Erbaa, Turkey (7.0, Dec 20) †‡
- Ovalle (7.9–8.3, April 6)
- Alahan Panjang (7.2 & 7.5, June 8 & 9)
- Adapazarı–Hendek (6.6, June 20) †
- Central Java (7.0, July 23) †
- Tottori (7.0, Sept 10) †
- Tosya–Ladik (7.5, Nov 26) ‡†
- San Juan (6.7–.7.8, Jan 15) †‡
- Bolu–Gerede (7.5, Feb 1) †
- Cornwall–Massena (5.8, Sept 5)
- Gulf of Edremit–Ayvacik (6.7, Oct 6) †
- Tōnankai (8.1, Dec 5) †
- Valais (6.1, January 25)
- Aleutian Islands (8.6, April 1) †
- Varto–Hınıs (5.9, May 31) †
- Vancouver Island (7.3, June 23)
- Dominican Republic (8.1, Aug 4) ‡†
- Sagaing (8.0, 7.8, Sep 12)
- Kyrgyzstan (7.6, Nov 2)
- Peru (6.8, Nov 10) †
- Hsinhua (6.1, Dec 5) †
- Nankai (8.1, Dec 21) †
- Lady Caycay (8.2, Jan 25) †
- Litang (7.2, May 25) †
- Fukui (6.8, June 28) †
- Salta (7.0, Aug 25)
- Ashgabat (7.3, Oct 5) ‡†
- Desert Hot Springs (6.3, Dec 4)
- Olympia (6.7, April 13)
- Khait (7.4, July 10) ‡†
- Ambato (6.8, Aug 5) †
- Karlıova (6.7, Aug 17) †
- Queen Charlotte Islands (8.1, Aug 22)
- Tierra del Fuego (7.8, Dec 17)
‡ indicates the deadliest earthquake of the year