This is the Earthworm hypocenter garbage rejector. Eqfilter gets message type HYP2000ARC from the InRing does some sanity checks then puts any that pass all configured tests onto the OutRing. InRing and OutRing can not be the same.
All tests are optional.
If a test is not configured then it is not performed. If a test is configured then it must pass. More or less all parameters in the hypo summary card may be tested for. Additionally, authoritative regions may be configured. Minimum number of coda picks greater than zero for multiple magnitudes may also be configured.