Description
Digitized seismograms and event catalogues from a small observatory that recorded 20 thousand earthquakes, most of them too faint to feel.
Provenance
Rescued from a skip outside a former office in Amberby. The tape had stretched near its start; the first blocks were repaired by hand from the sampled signal. About 75 percent of the data could be read; the gaps are mapped.
Preservation
- Fixity (SHA-256)
bea634961f82d226f764fb42f886fb450014982c1ed97f535d90880d3df733c3- Last verified
- Oct 13, 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: Rushbrook Observatory, Seismograms, Rushbrook Observatory, 1986–1995 (1986–1995). Lazarus Archive, LZ-40620.