Volume 49, Issue 1 - 6 of the Summary covers data analysis on the first six months of data year 2012 including: Summary of Seismicity, Statistics of Collected Data, Overview of the ISC Bulletin, Leading Data Contributors.

Submitted article:

• The Brazilian Seismographic Network: Historical Overview and Current Status

Cite full issue as: International Seismological Centre (2015), Summary of the Bulletin of the International Seismological Centre, January - June 2012, 49(1-6), https://doi.org/10.5281/zenodo.998605.