View source for 1976 Songpan–Pingwu earthquake

{{Infobox earthquake
 | name        = 1976 Songpan–Pingwu earthquake
 | image       =
 | alt         = 
 | caption     = 
 | map         =
 | map_alt     = 
 | map_caption =
 | map2        = {{Location map | China
| label=
| lat = 32.69
| long  = 104.2
| mark = Bullseye1.png
| marksize = 40
| position = top
| width = 250
| float = right
| caption = 
| relief = yes}}
 |tags= yes
 |timestamp = triplet
 |timestamp-A = 1976-08-16 14:06:46
 |timestamp-B = 1976-08-21 21:49:53
 |timestamp-C = 1976-08-23 03:30:07
 |isc-event-A = 709871
 |isc-event-B = 710167
 |isc-event-C = 710223
 |anss-url-A  = usp0000hv8 
 |anss-url-B  = usp0000hzv
 |anss-url-C  = usp0000j0p
 |local-date = August 16, 22, and 23
 |local-time-A = 22:06<ref name="Jones 1984 7700">{{Harvnb|Jones|Han|Hauksson|Jin|1984|p=7700}}.</ref>
 |local-time-B = 05:49<ref name="Jones 1984 7700">{{Harvnb|Jones|Han|Hauksson|Jin|1984|p=7700}}.</ref>
 |local-time-C = 11:33<ref>{{Harvnb|Jones|Han|Hauksson|Jin|1984|p=7701}}.</ref>
 | duration    =
 |magnitude-A = 6.7 {{m|w|link=y}}, 7.0 {{m|s|link=y}}<ref>{{Short-isc|EHB|709871}}</ref>
 |magnitude-B = 6.3 {{m|w|link=y}}, 6.6 {{m|s|link=y}}<ref>{{Short-isc|EHB|710167}}</ref>
 |magnitude-C = 6.4 {{m|w|link=y}}, 6.7 {{m|s|link=y}}<ref>{{Short-isc|EHB|710223}}</ref>

 | depth       = A: {{convert|8|km|mi|0|abbr=on}}<br />B: {{convert|15|km|mi|0|abbr=on}}<br />C: {{convert|19|km|mi|0|abbr=on}}
 | location    = {{coord|32.69|104.2|region:CN_type:event|display=inline,title}}<ref>{{Short-isc|gem|709781}}</ref>
 | fault = Huya<ref name="Jones 1984 7697">{{Harvnb|Jones|Han|Hauksson|Jin|1984|p=7697}}.</ref>
 | type        = [[Fault (geology)#Dip-slip faults|Reverse]] and left-lateral<ref name="Jones 1984 7697">{{Harvnb|Jones|Han|Hauksson|Jin|1984|p=7697}}.</ref>
 | affected    = [[Songpan County|Songpan]] and [[Pingwu County|Pingwu]], [[Sichuan]]
 | damage     = <!-- cost/extent of property damage -->
 | intensity   = {{MMI|VII}}<ref>{{Short-anss|Sichuan|1976a}}</ref>
 | pga         = <!-- NN''[[Peak ground acceleration|g]]'' -->
 | tsunami     = 
 | landslide   =
 | foreshocks  = Three year swarm
 | aftershocks =
 | casualties  = 38 dead, 800 injured
}}

The '''1976 Songpan–Pingwu earthquake''' that struck [[Songpan County|Songpan]] and [[Pingwu County|Pingwu]] counties in [[Sichuan]], [[China]] consisted of three mainshocks on the 16th, 21st, and 23rd (UTC) of August. A 1984 report gave the magnitudes as 7.2, 6.7, and 7.2, respectively (scale not specified).<ref name="Jones 1984 7697">{{Harvnb|Jones|Han|Hauksson|Jin|1984|p=7697}}.</ref> The magnitudes were subsequently recalculated as 6.7, 6.3, and 6.4 on the {{m|w|link=y}} scale, and 7.0, 6.6, and 6.7 on the {{m|s|link=y}} scale.<ref>{{Short-isc|EHB|709871}} {{Short-isc|EHB|710167}} {{Short-isc|EHB|710223}}</ref> These were preceded by an [[earthquake swarm]] lasting three years. During the period from August 16 to August 31 there were over 400 aftershocks of magnitude 3.0 or greater.<ref>{{Harvnb|Jones|Han|Hauksson|Jin|1984|p=7698}}</ref>

Short term earthquake warning were issued 3 months before the earthquake.<ref name="Liaoning2017">{{cite web|website= [[Liaoning Earthquake Administration]]|url=http://www.lndzj.gov.cn/jcyb1/ybgl/201703/t20170302_2801324.html|title=Past successful Chinese earthquake predictions}}{{date missing|date= November 2018}}{{author missing|date= November 2018}}</ref> There were 38 dead in the four counties struck—Songpan, Pingwu, Maowen and Nanping. More than 5,000 houses collapsed and 2800 heads of livestock lost. The earthquake was felt as far as [[Gaotai]], [[Gansu]] to the west, [[Kunming]], [[Yunnan]] to the south, [[Hohhot]], [[Inner Mongolia]] to the north, and [[Changsha]], [[Hunan]] to the east; an area with a maximum radius of 1,150 kilometers (714 miles).<ref>{{cite web|website= [[China Earthquake Administration]]|url=http://www.cea.gov.cn/manage/html/8a8587881632fa5c0116674a018300cf/_content/08_06/02/1212392075937.html|agency=[[Xinhua News Agency]]|title=Earthquake with scale 6 or higher Since 1976}} {{date missing|date= November 2018}}{{author missing|date= November 2018}}</ref> The total number of casualties was 800, 600 of them slightly injured, mostly due to mudslides.<ref name="Liaoning2017"/> The Earthquake Administration of Sichuan won the Chinese National Science and Technology Award of 1978 for successfully [[Earthquake prediction|predicting]] the earthquake.<ref>{{cite web|website=[[Sichuan Earthquake Administration]]|url=http://www.eqsc.gov.cn/manage/fileupload/statichtml/admin/sppw30/index.htm|title=30th anniversary of the Songpan–Pingwu earthquake|access-date=2018-10-14|archive-date=2013-11-27|archive-url=https://web.archive.org/web/20131127060531/http://www.eqsc.gov.cn/manage/fileupload/statichtml/admin/sppw30/index.htm|url-status=dead}}{{date missing|date= November 2018}}{{author missing|date= November 2018}}</ref>

==See also==
*[[1976 Tangshan earthquake]] (July 27/28)
*[[1976 Longling earthquake]] (May 29)
*[[List of earthquakes in 1976]]
*[[List of earthquakes in China]]
*[[List of earthquakes in Sichuan]]

==Notes==
{{reflist}}

==Sources==
{{div col|colwidth=30em}}
{{refbegin}}

* {{Cite anss|mode=cs2|Sichuan|1976a|usp0000hv8|M 6.9 - Sichuan-Gansu border region, China}}
* {{Cite anss|mode=cs2|Sichuan|1976b|usp0000hzv|M 6.4 - Sichuan-Gansu border region, China}}
* {{Cite anss|mode=cs2|Sichuan|1976c|usp0000j0p|M 6.7 - Sichuan-Gansu border region, China}}
* {{Cite isc|mode=cs2|EHB}}
* {{Cite isc|mode=cs2|gem}}
* {{Citation
 |first1= L. M.|last1= Jones |authorlink= Lucy Jones
 |first2= W.  |last2= Han
 |first3= E.  |last3= Hauksson
 |first4= A.  |last4= Jin
 |first5= Y.  |last5= Zhang
 |first6= Z.  |last6= Luo
 |year= 1984
 |title= Focal mechanisms and aftershock locations of the Songpan earthquakes of August 1976 in Sichuan, China
 |url= http://authors.library.caltech.edu/38336/1/jgrb4880.pdf
 |journal= [[Journal of Geophysical Research]]
 |volume= 89|number= B9|pages= 7697–7707
 |doi= 10.1029/jb089ib09p07697
 |bibcode= 1984JGR....89.7697J
}}.

{{refend}}
{{div col end}}

==External links==
*{{EQ-isc-link|709871}}

{{Earthquakes in 1976}}
{{Earthquakes in China}}

{{DEFAULTSORT:Sichuan Earthquake, 1976}}
[[Category:Earthquakes in Sichuan|1976 Songpan]]
[[Category:1976 in China]]
[[Category:1976 earthquakes]]
[[Category:Ngawa Tibetan and Qiang Autonomous Prefecture]]
[[Category:1976 disasters in China]]


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