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Map Title

Magnitude
 :2.9
Date & Time (UTC) 2025-10-21 08:57:04.3
Date & Time (Local) 1404/7/29  12:27:04.3
Location Lat:36.645 Lon: 55.022
Region Semnan Province, 25 km North of Shahrud
Nearest Cities
8 km North of Qaleh-ye nokharqan, Semnan Province
18 km North of Bastam, Semnan Province
25 km North of Shahrud, Semnan Province
26 km West of Kalateh khanj, Semnan Province
32 km South East of Ali Abad, Golestan Province
Depth 12 km
Agency
Faults within 150 km:
SHAVAR_F (Length: 87 km) , Distance to epicenter: 8 km 
KHAZAR_F (Length: 523 km) , Distance to epicenter: 41 km 
ASTANEH_F (Length: 72 km) , Distance to epicenter: 41 km 
Number of Phases 13
RMS 0.3
Number of Stations 13
Error in Latitude >1 km
Error in Longitude 1 km
Error in Depth 4.3 km

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Amplitude

UIDAgencyStationComponentAmplitudePeriodArrival TimeProccessing TimeSignal Clip
199807IIEES SCCHTHZ 0.0412025-10-21 08:57:572025-10-21 10:43:00n
199808IIEES SCTABSZ 0.0212025-10-21 08:58:002025-10-21 10:43:00n
199809IIEES SCNASNZ 0.0212025-10-21 08:58:102025-10-21 10:43:00n
199810IIEES SCSHRTZ 0.0112025-10-21 08:58:242025-10-21 10:43:00n

Phase

AgencyStationComponentPhase TypePhase QualityFirst MotionObserved Arrival TimeTime ResidualLoc. FlagInput WeightDistanceAzimuth
IIEES SCABGHZ EPg E2025-10-21 08:57:05-3n422297
IIEES SCGLOZ EPg E2025-10-21 08:57:22-0.4y0108262
IIEES SCSHROZ EPg E2025-10-21 08:57:22-0.6y0114128
IIEES SCMRVTZ EPg E2025-10-21 08:57:280y014740
IIEES SCBJRDZ EPn E2025-10-21 08:57:430.6y024261
IIEES SCDAMVZ EPn E2025-10-21 08:57:45-3.6n4297248
IIEES SCCHTHZ EPn E2025-10-21 08:57:570.5y0360257
IIEES SCTABSZ EPn E2025-10-21 08:58:000.2y0383150
IIEES SCGHVRZ EPn E2025-10-21 08:58:04-0.1y0418235
IIEES SCKAGHZ EPn E2025-10-21 08:58:070.1y044286
IIEES SCNASNZ EPn E2025-10-21 08:58:10-0.2y0472205
IIEES SCASAOZ EPn E2025-10-21 08:58:160.5y0509243
IIEES SCSHRTZ EPn E2025-10-21 08:58:24-0.2y0584125