Description
Digitized seismograms and event catalogues from a small observatory that recorded 32 thousand earthquakes, most of them too faint to feel.
Provenance
Deposited by University of Westholm, Special Collections. 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)
8cb0b5a225e0c7e17e2a5c8a4e41c85fcda08dd63f3f642a5aa2bfc43ee35974- 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 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: Hazelbridge Observatory, Seismograms, Hazelbridge Observatory, 1991–1995 (1991–1995). Lazarus Archive, LZ-05301.