Light Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 10
Confusion; Situational Awareness
ATC Issue All Types; Inflight Event / Encounter CFTT / CFIT
General None Reported / Taken
Airspace Structure
Aircraft X was an IFR from ZZZ to OTH. The D side gave him as filed to 060; his requested altitude. Aircraft X started flashing MSAW (Minimum Safe Altitude Warning) north of CEC; I didn't think anything of it because there were a couple areas in our airspace that the aircraft will flash MSAW because they are below the MIA but they are above the MEA and therefore at a safe altitude. For some reason; I thought the MEA on V27 between CEC and OTH was 060 so I though the MSAW alert was yet another erroneous alert. The MEA on V27 is 064; the MIA is 062.Although retaining the knowledge of the MIAs and MEAs are my responsibility; the erroneous MSAW reports does desensitize us to those alerts. If the program or equipment was updated to fix this problem; aircraft flashing MSAW would elicit a faster response.
Seattle Center Controller reported a situation where an aircraft was below the MIA and above the MEA; resulting in the MSAW to alarm.