Description
Digitized seismograms and event catalogues from a small observatory that recorded 40 thousand earthquakes, most of them too faint to feel.
Provenance
Rescued from a skip outside a former office in North Marcrest. The dye layer had begun to fail at the outer edge; the last sectors came from a second read in a different drive. A handful of files survive, from a much larger whole.
Preservation
- Fixity (SHA-256)
9a35fb95da3c044e178418a95e1bcbbc00200de101ee2dd4ab826a66451b9429- Last verified
- Oct 29, 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: Salthaven Observatory, Seismograms, Salthaven Observatory, 1992–1995 (1992–1995). Lazarus Archive, LZ-25701.