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Map Title

Magnitude
 :4.7
Date & Time (UTC) 2025-07-18 04:46:31.2
Date & Time (Local) 1404/4/27  08:16:31.2
Location Lat:36.622 Lon: 54.896
Region Semnan Province, 23 km North of Shahrud
Nearest Cities
18 km North West of Bastam, Semnan Province
19 km West of Qaleh-ye nokharqan, Semnan Province
23 km North of Shahrud, Semnan Province
27 km North East of Majen, Semnan Province
32 km South of Ali Abad, Golestan Province
Depth 12 km
Agency
Faults within 150 km:
SHAVAR_F (Length: 87 km) , Distance to epicenter: 6 km 
ASTANEH_F (Length: 72 km) , Distance to epicenter: 30 km 
DAMGHAN_F (Length: 95 km) , Distance to epicenter: 39 km 
Number of Phases 16
RMS 0.5
Number of Stations 16
Error in Latitude >2.5 km
Error in Longitude 2.5 km
Error in Depth 14 km

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Amplitude

UIDAgencyStationComponentAmplitudePeriodArrival TimeProccessing TimeSignal Clip
198692IIEES SCMRVTZ 2012025-07-18 04:46:562025-07-19 04:23:00n
198693IIEES SCTABSZ 212025-07-18 04:47:272025-07-19 04:23:00n
198694IIEES SCSHRTZ 112025-07-18 04:47:512025-07-19 04:23:00n
198695IIEES SCSRSLZ 0.212025-07-18 04:48:252025-07-19 04:23:00n

Phase

AgencyStationComponentPhase TypePhase QualityFirst MotionObserved Arrival TimeTime ResidualLoc. FlagInput WeightDistanceAzimuth
IIEES SCMRVTZ EPg E2025-07-18 04:46:56-0.4y015643
IIEES SCBJRDZ EPn E2025-07-18 04:47:100.2y025362
IIEES SCDAMVZ EPn E2025-07-18 04:47:03-10.8n4285247
IIEES SCTABSZ EPn E2025-07-18 04:47:270.6y0387148
IIEES SCGHVRZ EPn E2025-07-18 04:47:29-0.1y0408234
IIEES SCKAGHZ EPn E2025-07-18 04:47:361.1y045386
IIEES SCNASNZ EPn E2025-07-18 04:47:34-2.8n4465204
IIEES SCYZKHZ EPn E2025-07-18 04:47:07-30.1n4470183
IIEES SCASAOZ EPn E2025-07-18 04:47:40-0.6y0498242
IIEES SCSHRTZ EPn E2025-07-18 04:47:51-0.8y0592124
IIEES SCBSRNZ EPn E2025-07-18 04:47:46-12.9n4647143
IIEES SCKRBRZ EPn E2025-07-18 04:48:09-4.4n4757167
IIEES SCSRSLZ EPn E2025-07-18 04:48:250.8y0850267
IIEES SCZHSFZ EPn E2025-07-18 04:48:370.2y0951145
IIEES SCGNIZ EPn E2025-07-18 04:48:400.4y0970294
IIEES SCIRSRZ EPn E2025-07-18 04:49:09-0.2y01210152