1998 Ninglang earthquake

The 1998 Ninglang earthquake (1998年宁蒗地震) occurred on November 19 at 19:38 local time. The epicenter was near the border between the provinces of Sichuan and Yunnan, China. The United States Geological Survey stated that the epicenter was located in the Sichuan Province, while the China Earthquake Data Center provided a different location in Lanniqing Township (烂泥箐乡), Ninglang, Yunnan Province.[1][2] The magnitude of the earthquake was put at Ms 6.2 and it caused five deaths, with 208 seriously injured in Yunnan and 20 people seriously injured in Sichuan. Building damage was reported in Ninglang, Yunnan and Yanyuan, Sichuan.[3][4] A dammed lake was formed by a landslide in the Lanniqing Township.[5]

1998 Ninglang earthquake
UTC time1998-11-19 11:38:14
ISC event1324800
USGS-ANSSComCat
Local dateNovember 19, 1998 (1998-11-19)
Local time19:38:14 CST
MagnitudeMs 6.2
Depth10 km
Epicenter27.27°N 101.03°E / 27.27; 101.03
Areas affectedChina
Casualties5

The earthquake occurred around the time of New Year Festival of the Yi people.[5] The lowest temperature in the mountainous area of Ninglang had dropped to about 0 °C at night. Around 30,000 people lived outside. The local government distributed tents and blankets in the earthquake stricken areas.[6] The Japanese government provided 200,000 US dollars.[7]

The focal mechanism was of right-lateral strike-slip faulting in the NNW direction. The earthquake was preceded by prominent foreshocks, the largest of which occurred on October 2 at 12:49 UTC (20:49 local time) with a magnitude of Ms  5.3. The aftershocks were distributed in a belt in the NW direction.[8] Underground water anomalies were recorded before the earthquake.[9]

References
  1. "Archived copy". Archived from the original on 2010-07-20. Retrieved 2010-09-22.CS1 maint: archived copy as title (link)
  2. "Archived copy". Archived from the original on 2014-07-28. Retrieved 2019-02-22.CS1 maint: archived copy as title (link)
  3. "1998年11月19日云南省宁蒗6.2级地震". www.csi.ac.cn. Archived from the original on 2014-07-30. Retrieved 2012-10-14.
  4. "宁蒗6.2级地震震害及其损失估计" by 崔建文, 王锡财, and 施伟华
  5. "Archived copy". Archived from the original on 2012-12-05. Retrieved 2012-10-15.CS1 maint: archived copy as title (link)
  6. http://www.gmw.cn/01gmrb/1998-11/22/GB/17884%5EGM2-2210.HTM
  7. http://www.gmw.cn/01gmrb/1998-11/28/GB/17890%5EGM4-2818.HTM
  8. "国家地震科学数据共享中心". www.csi.ac.cn. Archived from the original on 2016-03-04. Retrieved 2012-10-14.
  9. "寧蒗6.2級地震前地下水動態異常與跟蹤預測" by 夏菲
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