Event Specification

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Map Title

Magnitude
3.9
Date & Time (UTC) 2025-07-31 15:58:53.9
Date & Time (Local) 1404/5/9  19:28:53.9
Location Lat:31.469 Lon: 50.346
Region Chaharmahal Bakhtiari Province, 44 km -West of Lordegan
Nearest Cities
20 km North of Dishmuk, Kohkiluieh va boyerahmad Province
21 km North of Esfandan, Kohkiluieh va boyerahmad Province
28 km North East of Seidun, Khoozestan Province
32 km South of Dehdez, Khoozestan Province
32 km North of Qale-ye raiesi, Kohkiluieh va boyerahmad Province
Depth 12 km
Agency
Faults within 150 km:
MFF2 (Length: 205 km) , Distance to epicenter: 20 km 
SABZKUH_F (Length: 67 km) , Distance to epicenter: 34 km 
MFF4 (Length: 62 km) , Distance to epicenter: 45 km 
Number of Phases 14
RMS 0.4
Number of Stations 14
Error in Latitude >1.8 km
Error in Longitude 1.8 km
Error in Depth 521 km

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Amplitude

UIDAgencyStationComponentAmplitudePeriodArrival TimeProccessing TimeSignal Clip
199037IIEES SCNASNZ 0.412025-07-31 15:59:362025-09-07 05:45:00n
199038IIEES SCGHVRZ 0.512025-07-31 15:59:452025-09-07 05:45:00n
199039IIEES SCKRBRZ 0.0712025-07-31 16:00:202025-09-07 05:45:00n
199040IIEES SCSRSLZ 0.112025-07-31 16:00:282025-09-07 05:45:00n

Phase

AgencyStationComponentPhase TypePhase QualityFirst MotionObserved Arrival TimeTime ResidualLoc. FlagInput WeightDistanceAzimuth
IIEES SCNASNZ EPn E2025-07-31 15:59:360.3y027558
IIEES SCBSR2Z EPn E2025-07-31 15:59:4810.7n4292243
IIEES SCGHVRZ EPn E2025-07-31 15:59:451.2y034414
IIEES SCYZKHZ EPn E2025-07-31 15:59:36-16.8n441476
IIEES SCGHIRZ EPn E2025-07-31 15:59:55-0.6y0435144
IIEES SCKRBRZ EPn E2025-07-31 16:00:20-0.7y0636105
IIEES SCTABSZ EPn E2025-07-31 16:00:260.3y068069
IIEES SCSRSLZ EPn E2025-07-31 16:00:28-0.2y0695319
IIEES SCABGHZ EPn E2025-07-31 16:00:30-0.4y071435
IIEES SCSHROZ EPn E2025-07-31 16:00:25-6.9n472846
IIEES SCUOSSZ EPn E2025-07-31 16:00:560.2y0924142
IIEES SCSHRTZ EPn E2025-07-31 16:01:010.2y096576
IIEES SCRAYNZ EPn E2025-07-31 16:01:060.2y01002209
IIEES SCIRSRZ EPn E2025-07-31 16:01:230.6y01138116