Since installing TOAST on our new Tsunami modelling server and the SeisComp Moment Tensor module (scmt), I have been experimenting a lot with focal mechanisms. If you have not upgraded your SeisComP to the professional version, the free version still allows you to play around. Here I show you how to get a focal mechanism to appear on your SeisComp EventS Viewer (scesv) in 3 easy steps:
Here we use last year’s 7.6 Mw event in Costa Rica as an example:
2. Next open SeisComp’s Origin Locator View (scolv):
and click the Location tab and then the First Motion tab. You can now either grab the beach ball with the mouse and roll it around until it looks similar what the pros published OR click next to NP1 (Nodal Plane 1) and NP2 to add the values yourself:
3. Hit the “C” button and the beach ball will automatically appear across the SeisComP system and in TOAST.
Have fun focal mech-ing,
P.S. If you are not using SeisComP yet, download it free from GFZ and set up a world-wide earthquake location system from the comfort of your home or office.