This paper presents an after‐the‐fact characterization of the 2011 M 5.8 Mineral, Virginia, earthquake’s epicenter and effects from the traffic observed on the European–Mediterranean Seismological Centre (EMSC) Website within minutes of its occurrence. This approach, named flash sourcing (Bossu et al., 2011b), is based on the real‐time detection and processing of traffic surges observed on the EMSC Website after widely felt earthquakes (Bossu et al., 2008). Such surges are common on rapid earthquake information websites such as that of the EMSC (Wald and Schwarz, 2000; Schwarz, 2004). They are generally assumed...

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