壺1.ԴųСĵȼͷԽ󣬵ҲԽ󡣵𼶷ΪżһС2.5ĵ޸о;2.5ио;5ϵĵƻ𼶡 һ㽫С1ĵΪ΢   Ĵ봨
ڡ1,С3ĳΪ΢ ڡ3С4.5ĳΪие ڡ4.5С6ĳΪǿ ڡ6С7ĳΪǿ ڡ7ĳΪ 8Լ8ϵĳΪ޴
༭ε𼶵ļ
𼶵ļ¹涨. йҶȱеֵӦָ˲ʱֵ. 𼶵Ĺ涨 (GB17740-1999)  ļ
1Χ
׼ǵ M ⶨʹõĹ涨ڵⶨԤ֡űӦá ׼Լѧоʹ͵𼶡   M  Ǳ׼涨𼶣͵𼶱ƴעͷš磺岨𼶣𼶣𼶵ȡõ沨ⶨԴȴ 70 km Сõ沨ⶨʱą́վ۲桷 1990涨Ĳⶨ
2
׼ж塣 2.1  earthquake magnitude ԵСȡ 2.2 沨 surface wave 𼤷ص洫ĵ𲨡 2.3 ʵ˶ particle motion ڵͨʱ˶ 2.4 ضλ displacement of ground motion ʵ˶ʱԭֹľ롣 2.5 ʵ˶ٶ velocity of particle motion ʵ˶ʱضλƶʱ΢̡ 2.6 о epicentral distance ĳһָĵ롣 2.7 溯 calibration function ڲͬо۲ʵ˶ٶֵⶨʱ˥ӵУֵֵ൱ڸþϲʵ˶ٶΪ1 m/s ʱӦֵ
3 M ⶨ
 M õ沨ʵ˶ֵ (A/T)max ⶨ 㹫ʽΪ M=lg(A/T)max+  (  ) ʽУ A ---- 沨ضλƣȡˮƽضλƵʸͣ m  T ----Ӧڣ S  ----о࣬ (  )  ضλƵˮƽʱҪȡͬһʱ̻1/8֮ڵ𶯡ڲһʱȡȨͣ T=(T N A N +T E A E )/(A N +A E ) ʽУ A N ------ ϱضλƣ m A E ------ ضλƣ m T N -------A N Ӧڣ S  T E -------A E Ӧڣ S  溯 (  ) Ϊ  (  )=1.66lg  +3.5 ʹһиֵܴⶨ M   M Ӧݶ̨ƽֵȷ йĿǰʹõ𼶱׼ǹͨõϷּ9ȼʵʲУǸݵǶԵļ¼ġ𼶵ҲÿһͨͷŵԼ32Դûֱӵϵڶþʾ
༭ʹù涨
4.1 Ϣṩ ĲŻ߻ṩϢʱӦʹñ涨𼶡 4.2 ű űҹϢʱӦʹñ涨𼶡 4.3 Ԥ ԤĲŻ߻ƶԤԤʱӦʹñ涨𼶡 4.4  ĲŻ߻ƶʵʩִʩʱӦʹñ涨𼶡
༭ε϶
ӦãӦԹԺܲ϶ĵ M Ϊ׼ һ ͬо()ѡõ沨ڣTֵ /&ordm; T/s /&ordm; T/s /&ordm; T/s 2 36 20 914 70 1422 4 47 25 916 80 1622 6 58 30 1016 90 1622 8 69 40 1218 100 1625 10 710 50 1220 110 1725 15 812 60 1420 130 1825
༭йҶȱ
йҶȱ Ҫ ȣ ޸Уܼ¼ ȣ еȫֹиУ ȣ ھֹиУ΢ڶ ? ڴˣиУڶ죻 ȣ иУŴ죬ǽڱ ȣ վȣӣ䣬ª𻵣£ ȣ ΢𻵣Ʒ̴𻵣رѷ켰ɳðˮ ȣ ݶ𻵣ƻ·¹ܵѣ ȣ ݴƻ㵹Ʒ̴ѵȱ ȣ 㵹·ٻɽʯˮ˰ ȣ ݴ·̰α٣رܴ仯 ȣ һнձٻξұ仯ֲ𣻡 ҹĿǰʹõ𼶱׼ǹͨõϷּ9ȼͨС2.5ĵС2.5-4.7ие𣬴4.7ΪƻԵÿ1.0Լ30ÿ2.0Լ900౶˵һ6ͷŵ൱Ͷձ㵺ԭӵеһ7൱326𣬻൱100050.1ͷŵƽ1.4 𼶴Сɰѵ𻮷Ϊ¼ࣺ С3 ие𼶵ڻ3Сڻ4.5 ǿ𼶴4.5С6 ǿ𼶵ڻ6𼶴ڵ8ֳΪ޴