Aftershock identification

Details Aftershock identification Aftershock identification

2007-12-08

arxiv.org/abs/0712.1303v1

Phys. Rev. Lett., 101, 018501, 2008

Physics

Geophysics

4 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.101.018501

Earthquake aftershock identification is closely related to the question "Are aftershocks different from the rest of earthquakes?" We give a positive answer to this question and introduce a general statistical procedure for clustering analysis of seismicity that can be used, in particular, for aftershock detection. The proposed approach expands the analysis of Baiesi and Paczuski [PRE, 69, 066106 (2004)] based on the space-time-magnitude nearest-neighbor distance $\eta$ between earthquakes. We show that for a homogeneous Poisson marked point field with exponential marks, the distance $\eta$ has Weibull distribution, which bridges our results with classical correlation analysis for unmarked point fields. We introduce a 2D distribution of spatial and temporal components of $\eta$, which allows us to identify the clustered part of a point field. The proposed technique is applied to several synthetic seismicity models and to the observed seismicity of Southern California.

Affiliated with

Also associated with

No associations

Rating

Aftershock identification does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Aftershock identification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aftershock identification will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-325212