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Record W2537494486 · doi:10.17721/1728-2713.70.05

Determination of the focal mechanism of earthquake in Alberta, Canada (φ = 58.16°n, λ = -115.25°e, mw = 3.98)

2015· article· en· W2537494486 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueVisnyk of Taras Shevchenko National University of Kyiv Geology · 2015
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicEarthquake Detection and Analysis
Canadian institutionsnot available
Fundersnot available
KeywordsFocal mechanismMechanism (biology)SeismologyGeologyEnvironmental sciencePhysicsFault (geology)

Abstract

fetched live from OpenAlex

The aim of this paper is to determine focal mechanism of earthquake occurred in Alberta (Canada) province by using graphic method and to clarify the focus depth by doing correlation analysis of real and artificial seismograms. The graphic method is proposed for for determining the focal mechanism of earthquake in the region with low seismic activity. This method is based on P-waves polarity distribution into zones of compression and extension, and division of nodal planes. Fuzzy P-waves arrivals in the station and the value of the ratio of the S-wave amplitude to Pwave are important parameters. They define the relative location to the nodal plane. To use the graphical method the correct velocity model of the medium and clear records of the stations might be used. The results of construction of focal mechanism in Alberta (Canada) as the the region with low seismic activity are discussed. The focal mechanisms were constructed by graphic method with using the complete records from the station and documents about these records for the different depth of the source occurence. The comparative analysis of real and artificial seismograms is made. It is determined that seismic event occurred at a depth of 6 km. For the first time the focal mechanism of the earthquake in Alberta is determined. The depth of the earthquake occurrence is specified by correlation analysis between the actual and artificial tracks (seismogram). The highest correlation coefficient is observed between real records and artificial seismograms calculated for the earthquake depth of 6 km, which indicates the depth of the earthquake source determined in this work. The results of this paper will be used for further study of Carpathian region seismicity, determination of the focal mechanisms of earthquake and analysis of stress-strain state of rocks in this region.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.231
Threshold uncertainty score0.914

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.011
GPT teacher head0.179
Teacher spread0.168 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it