A software package for epicentral determination of near Earthquakes
Keywords:software package, epicentral parameters, seismic stations
A software package using IBM 360/44 has been developed for determining the epicentral parameters of local crustal earthquakes. The arrival times of both the direct (Pg and Sg) as well as refracted (Pn and Bn) phases recorded at the seismic stations have been utilised. The computation involves the formulation of 3 X 3 symmetric matrices for fixed depths and their solution with appropriate weightage. In cases, where the reported arrival times are only for Pg and Sg phases, the depth is also floated and a 4 X 4 symmetricx matrix is formed and solved.
The results have peen compared with those determined earlier using a large scale map (I cm=1 km) or the U. S. Geological Survey monthly listings. It is seen that the agreement is fairly good when the data coverage is appropriate.
How to Cite
Copyright (c) 2021 MAUSAM
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
All articles published by MAUSAM are licensed under the Creative Commons Attribution 4.0 International License. This permits anyone.
Anyone is free:
- To Share - to copy, distribute and transmit the work
- To Remix - to adapt the work.
Under the following conditions:
- Share - copy and redistribute the material in any medium or format
- Adapt - remix, transform, and build upon the material for any purpose, even