Canadian strong ground motion recordings of the 28 February, 2001 M=6.8 Nisqually (Seattle-Olympia) Washington, Earthquake
Bibliographic record
Abstract
An earthquake of M =6.8 [M =5.9] occurred on 28 February 2001 near Olympia, Washington, W L approximately 150 km SSE of Victoria and 235 km S of Vancouver. This earthquake, the largest in the area in more than 50 years, was a deep (52 km) normal-faulting event that occurred within the subducting Juan de Fuca plate. It was felt strongly across southwestern British Columbia, and as far away as southeastern British Columbia and Banff, Alberta (700 km from the epicentre). This earthquake triggered strong motion instruments at 32 sites in southwestern British Columbia, thus providing the largest single strong motion data set collected in this region to date. Peak horizontal ground accelerations ranged from 0.3%g to 3.5%g (2.9-34.2 cm/s2), at epicentral distances of 150-300 km. In this Open File we present time series plots of the acceleration, velocity, and displacement data, as well as the Fourier spectra, and the Response spectra. Tabulated station parameters and peak accelerations are given together with maps of the network configurations showing the locations of triggered and untriggered instruments.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.003 | 0.005 |
| Science and technology studies | 0.002 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.012 | 0.003 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".