1943 Ovalle earthquake

{{Short description|Earthquake in Coquimbo, Chile}}

{{Use dmy dates|date=October 2024}}

{{Infobox earthquake

| title = 1943 Ovalle earthquake

| image =

| map2 = {{Location map+ | South America

| places =

{{Location map~|South America|lat=-33.05|long=-71.62|label=Valparaíso|label_size=120|mark=Green pog.svg}}

{{Location map~|South America|lat=-31.432|long=-71.475|marksize=40|mark=Bullseye1.png}}

| relief = yes

| width = 260

| float = right

| caption = }}

| timestamp = 1943-04-06 16:07:17

| isc-event = 899789

| anss-url = iscgem899789

| local-date = {{Start date|1943|04|06|df=yes}}

| local-time = 12:07{{Cite web |url=https://www.ngdc.noaa.gov/nndc/struts/results?eq_0=3740&t=101650&s=13&d=22,26,13,12&nd=display |archive-url=https://web.archive.org/web/20200726140103/https://www.ngdc.noaa.gov/nndc/struts/results?eq_0=3740&t=101650&s=13&d=22,26,13,12&nd=display |url-status=dead |archive-date=26 July 2020 |title=Comments for the Significant Earthquake |publisher=National Centers for Environmental Information |access-date=13 June 2019}}

| magnitude = 7.9–8.2 {{M|w|link=yes}}

| intensity = {{MSK-64|8}}{{cite journal |author1=José Fernández |author2=César Pastén |author3=Sergio Ruiz |author4=Felipe Leyton |title=Damage assessment of the 2015 Mw 8.3 Illapel earthquake in the North‑Central Chile |journal=Natural Hazards |date=2018 |volume=96 |pages=269–283 |doi=10.1007/s11069-018-3541-3 |url=https://link.springer.com/article/10.1007%2Fs11069-018-3541-3 |publisher=Springer|s2cid=134198142 }}

| depth = 35 km

| duration = ~25 seconds{{Cite journal |last1=Tilmann F. |last2=Zhang Y. |last3=Moreno M. |last4=Saul J. |last5=Eckelmann F. |last6=Palo M. |last7=Babeyko A. |last8=Chen K. |last9=Baez J.C. |last10=Schurr B.; Wang R.; Dahm T. |year=2015 |title=The 2015 Illapel earthquake, central Chile: A type case for a characteristic earthquake? |journal=Geophysical Research Letters |volume=43 |issue=2 |pages=574–583 |doi=10.1002/2015GL066963|url=https://gfzpublic.gfz-potsdam.de/pubman/item/item_1423168_8/component/file_1504025/1423168.pdf |doi-access=free }}

| countries affected = Chile, Coquimbo Region

| location = {{Coord|-31.432|-71.475|region:CL_type:event|display=inline,title}}{{Cite anss|Chile|1943|iscgem899789|M 8.1 – Coquimbo, Chile|access-date=13 June 2019|mode=cs1}}

| aftershocks =

| casualties = 11 dead

| tsunami = yes

}}

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.{{Cite journal |last1=Beck S. |last2=Barrientos S. |last3=Kausel E. |last4=Reyes M. |year=1998 |title=Source characteristics of historic earthquakes along the central Chile subduction zone |journal=Journal of South American Earth Sciences |volume=11 |issue=2 |pages=115–129 |doi=10.1016/S0895-9811(98)00005-4}} 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.