Film · 1997 · Films · 1990s
Volcano
Scored from 197 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 1990s (4,082 peers).
Summary
When a volcano unexpectedly erupts beneath Los Angeles, emergency manager Mike Roark teams up with a geologist to save the city from rivers of lava surging through the streets. As molten rock threatens to engulf the MacArthur Park area and beyond, Roark must coordinate a desperate effort to divert the flow and evacuate residents while protecting his teenage daughter.
Released in 1997, Volcano is an action, drama and science-fiction film.
The cohort it is ranked inside is 1990s films — 4,082 of them. The calibrated figure is built from 197 reviewers whose rating history varies enough to place their own average. A broader pool of 199 reviewers with two or more reviews feeds the raw-average track instead. Rotten Tomatoes carries a separate audience for the same title, 3 of whom clear the calibration test.
How the score was built
We compare the reviewers of this title against every other title those same people reviewed. Each review is scored relative to the reviewer's own baseline — a 7/10 from a hard grader sits well above their average, while a 7/10 from a generous grader sits below theirs. Every reviewer then counts the same, so the result is a calibrated consensus rather than a raw average.
- Global percentile
- Where Volcano lands against every title we rank.
- In-cohort percentile
- The same comparison narrowed to its cohort — titles of the same format released in the same decade. A 1970s film is judged against 1970s films, not against last year's streaming series. Ranked against Films · 1990s (4,082 titles).
- AI-adjusted percentile
- The same reviewer-normalized score, corrected for how much confidence the sample supports: thin samples are pulled toward the corpus average. Each title keeps the share n / (n + 53) of its measured distance from the average, where n is its calibrated-reviewer count, and the result is ranked on the same scale as the global percentile.53 is the median sample size across everything we rank. Here n is 197.
Cohort: Films · 1990s
