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Map Title

Magnitude
 :3.8
Date & Time (UTC) 2026-10-28 21:31:28.2
Date & Time (Local) 1405/8/7  01:01:28.2
Location Lat:36.433 Lon: 54.749
Region Semnan Province, 20 km -West of Shahrud
Nearest Cities
10 km East of Majen, Semnan Province
20 km North West of Shahrud, Semnan Province
24 km West of Bastam, Semnan Province
25 km North West of Ruyan, Semnan Province
29 km North East of Mehmandust, Semnan Province
Depth 12 km
Agency
Faults within 150 km:
ASTANEH_F (Length: 72 km) , Distance to epicenter: 14 km 
SHAVAR_F (Length: 87 km) , Distance to epicenter: 14 km 
DAMGHAN_F (Length: 95 km) , Distance to epicenter: 16 km 
Number of Phases 7
RMS 0.4
Number of Stations 7
Error in Latitude >8 km
Error in Longitude 8 km
Error in Depth 696.5 km

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Amplitude

UIDAgencyStationComponentAmplitudePeriodArrival TimeProccessing TimeSignal Clip
202810IIEES SCGHVRZ 0.412026-10-28 21:32:232026-11-01 06:44:00n
202811IIEES SCNASNZ 0.112026-10-28 21:32:312026-11-01 06:44:00n
202812IIEES SCKRVRZ 0.112026-10-28 21:32:452026-11-01 06:44:00n
202813IIEES SCSHRTZ 0.0612026-10-28 21:32:492026-11-01 06:44:00n

Phase

AgencyStationComponentPhase TypePhase QualityFirst MotionObserved Arrival TimeTime ResidualLoc. FlagInput WeightDistanceAzimuth
IIEES SCTABSZ EPn E2026-10-28 21:32:06-16.8n4377145
IIEES SCGHVRZ EPn E2026-10-28 21:32:230y0385236
IIEES SCNASNZ EPn E2026-10-28 21:32:310.3y0441204
IIEES SCKRVRZ EPn E2026-10-28 21:32:45-0.5y0565160
IIEES SCSHRTZ EPn E2026-10-28 21:32:490.2y0593121
IIEES SCBRJZ EPn E2026-10-28 21:32:510.7y0596213
IIEES SCHNVDZ EPn E2026-10-28 21:32:54-0.5y0635248