# Earthworm Modules:
EqfilterII Overview

(last revised 6 September, 2006)

This is verion II the Earthworm hypocenter garbage rejector. EqfilterII was cloned from eqfilter. It accepts any of three message types: TYPE_HYP2000ARC, TYPE_LOC_GLOBAL, and TYPE_RAYLOC (eqfilter only accepts TYPE_HYP2000ARC). Whatever message type is read, is also the type written to eqfilterII's message ring. EqfilterII gets its messages 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. Tests are tied to inst_id. 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.

INST_WILDCARD is allowed. If wildcard is the only installation configured for a given test then arc messages from all installations will be tested with those parameters. If only a specific installation is configured for a given test, then only messages from that installation will be tested and all others will fail. If a specific installation is configured for a given test and wildcard is also configured for that test, then messages from the specific will use those parameters, and all other non-specified installations will use the wildcard params.

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