Im Quartz-Artikel «Using only tweets, scientists can now detect earthquakes in 29 seconds flat» wird beschrieben, wie Twitter bei der Lokalisierung von Erdbeben hilft (via ResearchBuzz: Firehose):
«Millions of people use Twitter to report earthquakes, but the data needs to be fine-tuned for it to be useful. USGS analyzed these tweets and found that those tweeting about earthquakes kept their tweets short. They also realized that those tweeting links were less likely to be users experiencing the earthquake firsthand.
So, the USGS decided to filter out tweets with more than seven words and those that contained links. These filtered tweets proved to be effective at monitoring earthquakes globally. Now, when a number of people start tweeting about an earthquake in the area, the USGS gets an alert.»