Description
Digitized seismograms and event catalogues from a small observatory that recorded 35 thousand earthquakes, most of them too faint to feel.
Provenance
Bought as part of a box of disks at an estate sale and donated anonymously. The drive spun up and was imaged behind a write blocker in a single pass. All files were recovered; 7 damaged sectors were rebuilt from redundant data.
Preservation
- Fixity (SHA-256)
2a7383297c84917f4fcff45c37000e8558a6db84a8dcae4cb5cb32514b3456d8- Last verified
- Oct 24, 2026, by Vigil
- Migrated to
- CSV with a data dictionary, with the original files kept
- Copies
- Three, on two kinds of storage, in two cities
- Original carriers
- Kept in cold storage in Vancouver
Access
Free, in the Lazarus reading room in Vancouver and in partner reading rooms. Copies may be taken away.
Reading-room copies are migrated to CSV with a data dictionary, with the original files kept. The recovered files are kept exactly as they were found.
Cite as: Hartmore Springs Observatory, Seismograms, Hartmore Springs Observatory, 2003–2010 (2003–2010). Lazarus Archive, LZ-16297.