seismicity

基本解释

More recently, researchers have sought to associate electromagnetic fields, the radon or hydrogen content of the soil and seismicity patterns with impending earthquakes.
最近，研究者们试图将电磁场以及土壤中氡和氢的含量与将要发生的地震类型联系在一起。
Many scientists believe this link between temblors and dams—called reservoir-induced seismicity—may have been what happened at California's Oroville Dam, in the foothills of the Sierra Nevada.
很多科学家都认为地震和大坝之间是有联系的，他们称其为“水库引发地震”，这种地震已在位于美国内华达山脉山麓下的加利福尼亚州奥罗维尔坝附近发生过。
"There has been seismicity but not really great-earthquake seismicity," says Hiroo Kanamori, a seismologist at the California Institute of Technology in Pasadena.
“仙台曾经发生过地震，但是却没有发生过强烈大地震，”麻布金森说，他是美国帕萨迪纳加州理工学院的地震学家。

What is known about past large Himalayan earthquakes, what is uncertain, and where are the gaps in knowledge and in seismicity where large and destructive events could occur in the foreseeable future?
UNESCO: ICTP seismology workshop in Nepal focuses on Himalayan hazards United Nations Educational, Scientific and Cultural Organization
The workshop on Seismicity and Earthquake Engineering in the Extended Mediterranean Region will be hosted by the University of Malta, and sponsored by the United Nations Educational, Scientific and Cultural Organization (UNESCO) and the U.S. Geological Survey (USGS).
UNESCO: Post-Conflict and Post-Disaster Responses

seismic activity the phenomenon of earthquake activity or the occurrence of artificially produced earth tremors

地震活动
In other hand, regional seismicity night be inhibited by big earthquake.
该模型能够解释部分与区域地震触发有关的现象。同时，大地震发生会使某些区域的地震活动减弱。
地震活动度
地震活动性