Description
Digitized seismograms and event catalogues from a small observatory that recorded 25 thousand earthquakes, most of them too faint to feel.
Provenance
Found in a school storeroom when the building was cleared. Read once, slowly, on a restored drive. A second pass was not attempted. Everything was recovered, with a few damaged files repaired from a second copy.
Preservation
- Fixity (SHA-256)
b02765e11e063c0085ef306febe43930d6088686bba081bfc4d9d13eacd04fe4- Last verified
- Oct 28, 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: North Marcrest Observatory, Seismograms, North Marcrest Observatory, 2001–2002 (2001–2002). Lazarus Archive, LZ-03591.