Description
Digitized seismograms and event catalogues from a small observatory that recorded 9 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 tape was sticky with binder breakdown and was baked at low temperature before a single careful read. Reassembled from fragments spread across several carriers.
Preservation
- Fixity (SHA-256)
7eefdd7e23e8daf2c99cbaf483db7a00fac5e3b72ef9ba2c8768fb01733accef- Last verified
- Oct 22, 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: Crowstead Harbour Observatory, Seismograms, Crowstead Harbour Observatory, 1984–1994 (1984–1994). Lazarus Archive, LZ-16813.