The 2014 Ludian earthquake struck Ludian County, Yunnan, China, with a moment magnitude of 6.1 on 3 August.[10] The earthquake killed at least 617 people, injuring at least 2,400 others.[11][12] As of 5 August 2014[update], 112 people remain missing.[13] Over 12,000 houses collapsed and 30,000 were damaged.[14] According to the United States Geological Survey, the earthquake occurred 29 km (18 mi) WSW of Zhaotong city at 16:30 local time (08:30 UTC).[15][16][17]
Tectonic setting
Satellite image of the immediate area affected by the Ludian earthquake. Size of red circles represent number of deceased per county.
The earthquake occurred at 16:03, Beijing time (08:03 UTC), on 3 August 2014. American geological surveys indicated that the epicenter was 29 km (18 mi) WSW of Zhaotong city at a depth of 10.0 km (6.2 mi),[18] in the quake-prone province of Yunnan in southwestern China, about 18 km (11 mi) from Zhaotong. It was especially felt in the province of Yunnan, and less in the provinces of Guizhou and Sichuan.[19]
ShakeMap of the earthquake from the United States Geological Survey.
The magnitude of the earthquake was 6.1 on the moment magnitude scale,[10] with an intensity of up to VII (Very strong) on the Mercalli intensity scale. The quake was the result of a strike-slipfault, whose fault plane has a southwest-northeast strike.[20]
Seismicity in this region of southeast Asia is the direct result of the orogenic activity of the Himalayan mountain belt. Due to the complex interaction between the Eurasian Plate and Indo-Australian Plate from Afghanistan in the west to Burma and China in the east, many shallow sub-surface faults are present in both southwest China and neighbouring Myanmar.
The earthquake caused significant damage in the immediate vicinity of the epicenter, principally in the city of Zhaotong, where power outages and significant structural damage were reported.[28] Chinese authorities announced that the quake left at least 391 dead, and over 1,801 injured.[29][30]
According to the South China Morning Post, the tremor was felt in nearby towns, including the capital of Yunnan, Kunming, also in Chongqing, Leshan and Chengdu in the neighboring province of Sichuan.[31] Road access to Longquan Village (龙泉村) of Longtoushan Town (龙头山镇), Ludian County, was blocked, where buildings collapsed.[32] In Ludian, it was reported that around 12,000 homes had collapsed, many of them being aged brick structures.[33]
Aftershocks
From 3 August 6 UTC until 21 UTC, 9 aftershocks of M 3.0 or higher were recorded by the China Seismic Bureau. The largest aftershock measured M 4.2.[34]
Mourning held on 8 August 2014 in Baogunao (包谷垴乡) for victims of the Ludian earthquake
The Chinese government sent a 30-man team to the epicentre region immediately after the earthquake struck, as well as 2,000 tents, 3,000 folding beds, 3,000 quilts, and 3,000 coats to provide shelter for the displaced and homeless.[28] The majority of the injured were transported to safe areas.[29]
Chinese Premier Li Keqiang, who flew to the epicenter on the morning of 4 August,[35][36] sent a joint working group to investigate and assist the locals in the rescue.[37]
Donations
As of 17:00 (UTC+8) on 15 August 2014, Yunnan Province received 536 million Yuan in donated money and 50 million Yuan in donated goods. The donations came from a wide array of government groups and privately owned companies.[38]
^ abcd云南省鲁甸县6.5级地震造成410人死亡12人失踪 [Magnitude 6.5 earthquake in Ludian County, Yunnan results in 410 deaths and 12 missing] (in Chinese). 5 August 2014. Archived from the original on 8 August 2014. Retrieved 5 August 2014.
^云南鲁甸县6.5级地震造成381人死亡3人失踪 [Magnitude 6.5 earthquake in Ludian County, Yunnan results in 381 deaths and 3 missing] (in Chinese). Government of China. 4 August 2014.
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