CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins79% CONFIDENCEOverall confidence: 79%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
Wikipedia[1][3][4]: the earthquake "occurred in Jiji (Chi-Chi), Nantou County, Taiwan on September 21, 1999, at 01:47:12 local time"; its infobox gives UTC 1999-09-20 17:47:16.A magnitude 7.7 earthquake struck Jiji in Nantou County at 01:47 on 21 September 1999, killing 2,415 people and causing NT$300 billion of damage, the second-deadliest quake in Taiwan's recorded history.
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