Focused on the current situation,monitoring system,technical management regulation,process,system composition,and information publication of the earthquake information release,we summarized the construction and develo...Focused on the current situation,monitoring system,technical management regulation,process,system composition,and information publication of the earthquake information release,we summarized the construction and development of China’s earthquake information release system and expected its future.In general,China’s earthquake information release systems is able to publish auto-results with MS≥3.0 from 1 to 3 minutes,M_S≥6.0 in global from 2 to 30 minutes,and formal results with MS≥3.0 in China from 8 to 30 minutes,MS≥6.0 in global from 20 to 60 minutes.These earthquake information is released by various channels such as short message,website,microblog,mobile application,etc.展开更多
1 SURVEY OF GLOBAL SEISMICITY A total of 5 strong earthquakes with M S≥7.0 occurred in the first half of 2018(from January 1 to May 31,2018)throughout the world,according to CENC(China Earthquake Networks Center),in...1 SURVEY OF GLOBAL SEISMICITY A total of 5 strong earthquakes with M S≥7.0 occurred in the first half of 2018(from January 1 to May 31,2018)throughout the world,according to CENC(China Earthquake Networks Center),including one with M S≥8.0(M W7.9),which occurred on January 23,2018 in Alaska(Fig.1).The 2018 M S8.0 Alaska earthquake was located in the north of the Circum-Pacific Seismic Belt.The mainshock was slip type and the rupture was unilateral along the NW direction,with maximum intensityⅩ.Features of global seismicity of M S≥7.0 in the first half year of 2018 are as follows.1.1 The Global Seismicity Was Similar to 2017 But Weaker Than Previous Years One earthquake with M S≥8.0 occurred in the first half of 2018.The global seismic strength stayed nearly the same compared with the earthquake with M S≥8.0 in 2017(Fig.2(a)).There were 5 earthquakes with M≥7.0 occurring in the world in the first half of 2018.The seismic frequency was similar to 2017,which had 8 strong earthquakes with M S≥7.0,but was significantly lower than the annual average of 19 strong earthquakes(Fig.2(b)).展开更多
基金the Network Center Seismic Network Department daily operation and maintenance funding support(1950411001)
文摘Focused on the current situation,monitoring system,technical management regulation,process,system composition,and information publication of the earthquake information release,we summarized the construction and development of China’s earthquake information release system and expected its future.In general,China’s earthquake information release systems is able to publish auto-results with MS≥3.0 from 1 to 3 minutes,M_S≥6.0 in global from 2 to 30 minutes,and formal results with MS≥3.0 in China from 8 to 30 minutes,MS≥6.0 in global from 20 to 60 minutes.These earthquake information is released by various channels such as short message,website,microblog,mobile application,etc.
文摘1 SURVEY OF GLOBAL SEISMICITY A total of 5 strong earthquakes with M S≥7.0 occurred in the first half of 2018(from January 1 to May 31,2018)throughout the world,according to CENC(China Earthquake Networks Center),including one with M S≥8.0(M W7.9),which occurred on January 23,2018 in Alaska(Fig.1).The 2018 M S8.0 Alaska earthquake was located in the north of the Circum-Pacific Seismic Belt.The mainshock was slip type and the rupture was unilateral along the NW direction,with maximum intensityⅩ.Features of global seismicity of M S≥7.0 in the first half year of 2018 are as follows.1.1 The Global Seismicity Was Similar to 2017 But Weaker Than Previous Years One earthquake with M S≥8.0 occurred in the first half of 2018.The global seismic strength stayed nearly the same compared with the earthquake with M S≥8.0 in 2017(Fig.2(a)).There were 5 earthquakes with M≥7.0 occurring in the world in the first half of 2018.The seismic frequency was similar to 2017,which had 8 strong earthquakes with M S≥7.0,but was significantly lower than the annual average of 19 strong earthquakes(Fig.2(b)).
