西北地震学报2011，Vol.33Issue(2)：130-136,7.
青藏高原北部地区地震基本活动状态定量评价
Quantitative Estimating Basic State of Seismicity in Northern Region of Qinghai-Xizang Plateau
摘要
Abstract
The northern region of Qinghai-Xizang plateau is divided into four separated seismicity areas according to the regional geological structures, stress field and dynamic environment, they are Qilian mountain seismic belt, southeastern Gansu province, Caidam - Gonghe block and Ku-ma seismic belt. The starting times for the minimum earthquake magnitude with complete recording catalogue in every areas are confirmed on the base of 6-value and seismic frequency. The alternative characteristics of active and calm periods for moderate-strong earthquakes in each area are concluded. Finally, the quantitatively characteristic parameters of earthquakes activity which have magnitudes bigger than moderate-strong event in average, active and calm periods are calculated separately, and also the state parameters of small event activity in three periods are obtained for the four areas.关键词
青藏高原北部地区/地震活动状态/定量分析/状态参数Key words
Northern region of Qinghai - Xizang plateau/ State of seismicity/ Quantitative estimation/ State parameter分类
天文与地球科学引用本文复制引用
刘小凤,梅秀苹,冯建刚,程建武,张辉..青藏高原北部地区地震基本活动状态定量评价[J].西北地震学报,2011,33(2):130-136,7.基金项目
地震行业科研专项(200708020) （200708020）
中国地震局兰州地震研究所论著编号:LC2011027 （）
