Description
Digitized seismograms and event catalogues from a small observatory that recorded 9 thousand earthquakes, most of them too faint to feel.
Provenance
Donated by the creator’s family in 2022. Three disks; one read cleanly on the first pass and the rest after repeated flux-level reads. All files were recovered; 15 damaged sectors were rebuilt from redundant data.
Preservation
- Fixity (SHA-256)
8a3d1934772c30eb83ca12835a7ba05502a51f4cd2f73562e885bdd8e6ca7332- Last verified
- Oct 9, 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 under the work’s license.
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: Brookmont Observatory, Seismograms, Brookmont Observatory, 1987–1988 (1987–1988). Lazarus Archive, LZ-36580.