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Seismological Data
Integrated Unified Earthquake Catalog for the Eurasian Arctic and Its Margins (1900 – 2024)
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The catalog integrates earthquake data from the following sources:
- The integrated refined and unified earthquake catalog for 1900 – 1961.
The catalog is derived from the most complete set of original data, a modern global velocity model,
and a location algorithm adapted for the relocation of early instrumental earthquakes.
- The earthquake catalog for the Arctic zone of the Russian Federation for 1962 – 2024
[Vorobieva et al., 2025].
Magnitudes are converted to the unified moment magnitude scale Mw.
Catalog
contains information on 23,417 seismic events for the period 1900 – 2024.
Catalog format (text format with TAB separator):
1. Year
2. Month
3. Day
4. Hour
5. Minutes
6. Seconds
7. Latitude
8. Longitude
9. Depth (not available for all earthquakes)
10. Unified magnitude (Mw)
11. Source catalog (agency)
12. Event ID in the ISC catalog
13. Original magnitude used to calculate the unified magnitude
14. Type and source of the original magnitude
15. Subregion
Map of earthquake epicenters of the integrated unified earthquake catalog
for the Eurasian Arctic and its Margins (1900 – 2024);
epicenters with Mw > 6.0 are indicated by stars
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