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Systems
Event Specification

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Map Title

Magnitude
 3.7
Date & Time (UTC) 2026-08-02 21:30:11.8
Date & Time (Local) 1405/5/12  01:00:11.8
Location Lat:36.734 Lon: 54.836
Region Golestan Province, 19 km South of Ali Abad
Nearest Cities
19 km South of Ali Abad, Golestan Province
26 km North West of Qaleh-ye nokharqan, Semnan Province
29 km South East of Jalin olia, Golestan Province
32 km North West of Bastam, Semnan Province
33 km North East of Majen, Semnan Province
Depth 12 km
Agency
Faults within 150 km:
SHAVAR_F (Length: 87 km) , Distance to epicenter: 19 km 
KHAZAR_F (Length: 523 km) , Distance to epicenter: 32 km 
ASTANEH_F (Length: 72 km) , Distance to epicenter: 35 km 
Number of Phases 8
RMS 0.6
Number of Stations 8
Error in Latitude >7.1 km
Error in Longitude 7.1 km
Error in Depth 999 km

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Amplitude

UIDAgencyStationComponentAmplitudePeriodArrival TimeProccessing TimeSignal Clip
202307IIEES SCSFBZ 0.212026-08-02 21:31:032026-08-09 05:55:00n
202308IIEES SCGHVRZ 0.312026-08-02 21:31:112026-08-09 05:55:00n
202309IIEES SCKRVRZ 0.0512026-08-02 21:31:342026-08-09 05:55:00n
202310IIEES SCSHRTZ 0.0312026-08-02 21:31:342026-08-09 05:55:00n

Phase

AgencyStationComponentPhase TypePhase QualityFirst MotionObserved Arrival TimeTime ResidualLoc. FlagInput WeightDistanceAzimuth
IIEES SCBJRDZ EPn E2026-08-02 21:30:510.3y025265
IIEES SCSFBZ EPn E2026-08-02 21:31:03-0.6y0354222
IIEES SCGHVRZ EPn E2026-08-02 21:31:110.7y0410232
IIEES SCNASNZ EPn E2026-08-02 21:31:07-11.6n4474203
IIEES SCKRVRZ EPn E2026-08-02 21:31:341y0594162
IIEES SCSHRTZ EPn E2026-08-02 21:31:34-0.7y0604125
IIEES SCKOOZ EPn E2026-08-02 21:30:45-50.3n4612141
IIEES SCGHIRZ EPn E2026-08-02 21:32:17-0.9y0953191