1997 Manyi earthquake

1997 Manyi earthquake

UTC time	1997-11-08 10:02:53
ISC event	1051405
USGS-ANSS	ComCat
Local date	November 8, 1997 (1997-11-08)
Local time	18:02:53 CST
Magnitude	7.4 Mw
Depth	15 km (9.3 mi)[1]
Epicenter	35.069°N 87.325°E / 35.069; 87.325
Type	Strike-slip
Areas affected	Tibetan Autonomous Region
Max. intensity	MMI VII (Very strong)

The 1997 Manyi earthquake (Chinese: 玛尼地震) occurred on November 8 at 10:02 UTC.^[2] The epicenter was in Nagqu Prefecture in northern Tibet, China. The focal mechanism indicates a left-lateral strike-slip movement. This earthquake had a surface rupture of 17 km (11 mi) long with up to 7 m (23 ft) of left-lateral slip along the Manyi fault, a westward continuation of the Kunlun fault, offset about 100 km (62 mi) to the south.^[3] Normally, the continental crust is about 35 km (22 mi) thick, but it reaches 70 km (43 mi) thick under the Tibetan Plateau. This earthquake ruptured up to 20 km (12 mi) of the top part of the local continental crust.^[4]

See also

• List of earthquakes in 1997
• List of earthquakes in China

References

1. Peltzer, G.; Crampe, F.; King, G. (1999), "Evidence of nonlinear elasticity of the crust from the Mw7.6 Manyi (Tibet) earthquake" (PDF), Science, 286 (5438): 272–276, doi:10.1126/science.286.5438.272, PMID 10514367, archived from the original (PDF) on 2010-05-29, retrieved 2010-07-13
2. Significant Earthquakes of the World, United States Geological Survey, archived from the original on 2011-06-07
3. Washburn, Z.; Arrosmith, J. Ramon; Dupont-Nivet, G.; Xiao Feng, W.; Yu Qiao, Z.; Zhengle, C. (2003), "Paleoseismology of the Xorxol segment of the central Altyn Tagh Fault, Xinjiang, China" (PDF), Annals of Geophysics, 46 (5): 1015–1034
4. Burgmann, R.; Dresen, G. (2008), "Rheology of the Lower Crust and upper mantle: Evidence from Rock Mechanics, Geodesy, and Field Observations" (PDF), Annual Review of Earth and Planetary Sciences, 36: 546, Bibcode:2008AREPS..36..531B, doi:10.1146/annurev.earth.36.031207.124326

External links

• The International Seismological Centre has a bibliography and/or authoritative data for this event.