Cruz Chronicles IV

July 14th, 2010

Hey everyone,

It's been a while since my last post, but there is not much to report. I have been carefully working back through all of the data I have been processing in my continuing effort to identify triggered tremor in Costa Rica. After hours of staring at seismograms and reading papers I have come to one grand conclusion: triggered tremor is freaking hard to find....at least in Costa Rica. After checking both large teleseismic events and some moderately sized local events, I have found nothing very convincing. This doesn't necessarily mean it's not there, but I just haven't seen it yet. If I end up not finding any, it will mean interesting things for the relationship of triggered tremor to its regionally setting. I just need to find out what those interesting things are. I will also be examining the stress levels that the surface waves of the potential triggering quakes are exerting in order to define a threshold that tremor is or isn't occuring at. I can then compare this to other areas where triggered tremor has been observed