1. A well drilling method, comprising: assigning a value to a behavior of each of multiple drilling parameters during a drilling operation, wherein the drilling parameters are derived at least in part from whether at least one precursor event has occurred; forming multiple parameter signatures, each of the parameter signatures comprising a respective combination of the values; comparing the parameter signatures to multiple event signatures, each of the event signatures being indicative of a respective drilling event; and controlling the drilling operation in response to a partial match resulting from comparing the parameter signatures to the event signatures.