震源机制解 [地震] focal mechanism solution
- 由震源机制解求出的主压应力轴为北北东向和北西向。
The principal compressional stress axis obtained through focal mechanism solutions show NNE and NW orientations. - 本次4.9级地震作出的震源机制解显示为走滑型,与1969年主震的情况较为类似。
The focal mechanism of the M4.9 earthquake shows that it belongs to strike slip type that is similar to the M6.4 earthquake in 1969. - 做出了4次地震的震源机制解。 结果表明,有3次地震是左旋走滑断层活动,另一次地震是逆断层活动。
Focal mechanism solutions of 4 events, for which required parameters are available, indicate left lateral strike slip faulting for 3 events and thrusting for one event.