Bulletin of the International Seismological Centre
The ISC Bulletin is the flagship product of the International Seismological Centre (ISC), widely recognized as the definitive record of global seismicity. It compiles earthquake data from 1900 to the present day, with the Reviewed ISC Bulletin—manually verified and relocated by ISC analysts—currently updated to August 2023. This resource is invaluable for seismologists, researchers, and disaster management professionals seeking accurate historical and near-real-time seismic data.
Key Features:
- Comprehensive Data: Covers global seismic events from 1900 onwards, with detailed hypocentres, phase arrival-times, and focal mechanism solutions.
- Reviewed Bulletin: Manually checked events, relocated when sufficient data is available, ensuring high accuracy (24 months behind real-time).
- Access Options: Available via online web searches, web services, downloadable monthly files (ISF/PDF), and FTP access.
- Event Grouping: Automated grouping of seismic data into events, with a scoring system for hypocentres based on azimuthal coverage, station count, and more.
- Manual Review Process: Selective events are reviewed and relocated by ISC analysts for enhanced reliability.
Use Cases:
- Research: Essential for studying long-term seismic patterns and earthquake mechanisms.
- Disaster Preparedness: Provides critical data for assessing seismic risks and planning mitigation strategies.
- Policy and Education: Supports governmental and academic initiatives with authoritative seismic records.
The ISC Bulletin stands out for its global scope, rigorous review process, and accessibility, making it a cornerstone for seismological studies worldwide.
