"Significant Earthquake Information"(ingilis). National Geophysical Data Center / World Data Service (NGDC/WDS): NCEI/WDS Global Significant Earthquake Database. National Oceanic and Atmospheric Administration. National Centers for Environmental Information. 1972. doi:10.7289/V5TD9V7K. 2021-07-25 tarixində arxivləşdirilib. İstifadə tarixi: 2023-12-23.
noaa.gov
ngdc.noaa.gov
"Significant Earthquake Information"(ingilis). National Geophysical Data Center / World Data Service (NGDC/WDS): NCEI/WDS Global Significant Earthquake Database. National Oceanic and Atmospheric Administration. National Centers for Environmental Information. 1972. doi:10.7289/V5TD9V7K. 2021-07-25 tarixində arxivləşdirilib. İstifadə tarixi: 2023-12-23.
"Significant Earthquake Information"(ingilis). National Geophysical Data Center / World Data Service (NGDC/WDS): NCEI/WDS Global Significant Earthquake Database. National Oceanic and Atmospheric Administration. National Centers for Environmental Information. 1972. doi:10.7289/V5TD9V7K. 2021-07-25 tarixində arxivləşdirilib. İstifadə tarixi: 2023-12-23.