Dormancy Reactivation Risk Score Calculator

Explicit caller-defined unrest evidence screen with missing-weight fraction, score NOT calibrated eruption probability or dormancy/reactivation forecast. Caller independently establishes units, regime, calibration and applicability; this does not establish design-code compliance, authenticity, operational safety, treatment efficacy or a validated forecast.

Description

An unrest score is a weighted summary of evidence under a chosen scoring policy.

An unrest score is a weighted summary of evidence under a chosen scoring policy.1

Missing evidence has its own weight, so the known-evidence score and coverage should be read together.

When to use Dormancy Reactivation Risk Score Calculator

Use this tool when you need to reproduce the stated calculation from measured records or independently selected model inputs. Prepare matched observations and independently established site, specimen, units, datum, and calibration context.

How to use Dormancy Reactivation Risk Score Calculator and understand its results

  1. Prepare matched observations and independently established site, specimen, units, datum, and calibration context.
  2. Enter callerAlreadyEstablishedNormalizedUnrestEvidence, callerIndependentScoreWeights, knownUnrestEvidenceFlags, following the field table and rules below, then run the tool.
  3. Read callerKnownWeightedScreenScore, unassessedScoreWeightFraction. Use the output meanings below to interpret units, signs, flags, and any nested result fields.
  4. Correct reported input issues and run again. For a successful result, check the stated evidence coverage and assumptions before using it in your review.
Input fieldMeaningValue typeRequirement
callerAlreadyEstablishedNormalizedUnrestEvidenceCaller already established normalized unrest evidencelist of numberRequired
callerIndependentScoreWeightsCaller independent score weightslist of numberRequired
knownUnrestEvidenceFlagsKnown unrest evidence flagslist of numberRequired

Use aligned normalized evidence fractions, nonnegative weights, and binary known flags. Both total weight and known weight must be positive. Divide the known weighted evidence sum by known weight, then report one minus the known-to-total weight ratio. The score is not an eruption probability.

score=Σ(known_i×weight_i×evidence_i)/Σ(known_i×weight_i); unassessed=1−knownWeight/totalWeight

Symbols follow the input and output meanings and the calculation rules above.

Output fieldMeaningValue type
callerKnownWeightedScreenScoreCaller known weighted screen scorenumber
unassessedScoreWeightFractionUnassessed score weight fractionnumber
json
{
  "input": {
    "callerAlreadyEstablishedNormalizedUnrestEvidence": [
      0.5,
      1
    ],
    "callerIndependentScoreWeights": [
      1,
      3
    ],
    "knownUnrestEvidenceFlags": [
      1,
      0
    ]
  },
  "output": {
    "callerKnownWeightedScreenScore": 0.5,
    "unassessedScoreWeightFraction": 0.75
  }
}

Limitations and assumptions

Interpretation requires independently matched observations, units, site or specimen, and calibration. The calculation does not establish geological identity, operating safety, or an eruption forecast.

Missing required fields, unknown fields, wrong types, and violated calculation rules are input issues. Numeric values must be finite; nonfinite results are rejected. Evidence arrays must be dense, with no missing cells. Numeric observation lists allow at most 10,000 entries, subject to any smaller bounds stated above.

Alternative or Complementary methods

For a related review, use Historical Eruption Frequency Per Century Calculator: Historical eruption frequency needs both counted events and an observation period judged sufficiently complete. Pooling only qualified windows prevents incomplete catalog coverage from silently becoming a recurrence estimate. For a complementary step, use Eruption Style Hawaiian Strombolian Vulcanian Classifier: Hawaiian, Strombolian, and Vulcanian style labels summarize different observed eruption behavior. This tool applies your evidence requirements for fountains, discrete bursts, or plug disruption and retains mixed or incomplete cases.

References

  1. Dormancy Reactivation Risk Score Calculator — tool.io

Similar or alternative tools

  • Historical Eruption Frequency Per Century Calculator

    Historical eruption frequency needs both counted events and an observation period judged sufficiently complete. Pooling only qualified windows prevents incomplete catalog coverage from silently becoming a recurrence estimate.

  • Eruption Style Hawaiian Strombolian Vulcanian Classifier

    Hawaiian, Strombolian, and Vulcanian style labels summarize different observed eruption behavior. This tool applies your evidence requirements for fountains, discrete bursts, or plug disruption and retains mixed or incomplete cases.

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