New Data at IRIS DMCSEED Data arriving in
SeismoArchives: Seismogram Archives of Significant Earthquakes of the World
WWSSN Film Chips
The World-Wide Film Chip Scanning Project (also known as the USGS World wide Standardized Seismograph Network Archiving Project) includes digital scans of over 30,000 film chips of 78 earthquakes and 156 nuclear events. The event list was chosen in consultation with government agencies and researchers interested in the project. Search the WWSSN Archive using SPUD.