Upward Continuation of Earth Surface’s Gravity Changes in Height of Near Space before Jiuzhaigou Earthquake
Abstract This paper uses the Jiuzhaigou MS7.0 earthquake as an example to discuss the precision of the earthquake monitoring system. The result shows that a change of 70 μGal on earth surface declines to 18 μGal in near space (20 km high) to earth.
Key words :
earthquake monitoring
gravity survey
upward continuation
near space
Cite this article:
ZHENG Chong,LI Hui. Upward Continuation of Earth Surface’s Gravity Changes in Height of Near Space before Jiuzhaigou Earthquake[J]. jgg, 2020, 40(2): 170-174.
ZHENG Chong,LI Hui. Upward Continuation of Earth Surface’s Gravity Changes in Height of Near Space before Jiuzhaigou Earthquake[J]. jgg, 2020, 40(2): 170-174.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2020/V40/I2/170
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