Early-est:     Greenland Sea    2025.11.12-06:03:31.85    q:A      mb:5.3    Mwp:5.9    Mwpd:-    Td*T50Ex:1.1     fmamp_polarity:./hypo.1762927414583.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1762927414583.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1762927414583.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1762927414583.mech.fmamp_amp_mwp.thumb.jpg

Automatic solution - this event has not been reviewed by a seismologist
Automatically determined event information may be incorrect!

Earthquake Details:
Magnitude: mb: 5.3 [177]    Mwp: 5.9 [91]    Mwpd: 5.9Xinv [56]
Region: Greenland Sea
Origin Time: 2025.11.12-06:03:31.85 UTC
Hypocenter: lat: 73.18°  lon: 6.41°  [+/-7km]    depth: 10km  [+/-9km]
Location Quality: qualityCode:  A     stdErr: 1.0s   assocPhases: 246   usedPhases: 206
minDist: 7.3°   maxDist: 150.9°   AzGap: 19°   2ndAzGap: 30°   atten: -0.97 [+/-0.21]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 6km   maxHorUnc: 7km   azMaxHorUnc: 78°
68%ConfEllipsoid:   semiMajorAxisLength: 9km   majorAxisAzimuth: 71°   majorAxisPlunge: 45°   semiIntermediateAxisLength: 9km   intermediateAxisAzimuth: 268°   intermediateAxisPlunge: 44°   semiMinorAxisLength: 8km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [98]    Td: 3.1s [93]    Td*T50Ex: 1.1 [93]    To: 4.2s [84]
Closest plate boundaries:
   North America - Eurasia [oceanic spreading ridge]: distance: ~10km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   1.1
   1.1
   1.1
Td*To:
     13.0
     13.0
     13.0
Mwp magnitude:
       5.9
       5.9
       5.9
Hypocenter depth:
       10km
       10km
       10km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1762927414583.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 10°   dip: 85°   rake: 175°
Nodal Plane 2: strike: 101°   dip: 86°   rake: 5°
Quality: azimuthalGap: -1°   stationPolarityCount: 192   misfitWeightCount: 26.8   misfit: 0.26   stationDistributionRatio: 0.31   meanDistP: 30.4   meanDistT: 19.7   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1762927414583.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 13°   dip: 79°   rake: 134°
Nodal Plane 2: strike: 114°   dip: 45°   rake: 15°
Quality: azimuthalGap: 20°   stationPolarityCount: 192   misfit: 0.41   stationDistributionRatio: 0.66   rmsAngDiffAccPref: 37.62   fracAcc30degPref: 0.60   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1762927414583.mech.hash.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_AREF):
Nodal Plane 1: strike: 11°   dip: 85°   rake: 176°
Nodal Plane 2: strike: 101°   dip: 86°   rake: 5°
Quality: azimuthalGap: -1°   stationPolarityCount: 107   misfitWeightCount: 14.7   misfit: 9999.90   stationDistributionRatio: 0.19   meanDistP: 18.6   meanDistT: 19.7   qualityCode: B
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_amp_aref
./hypo.1762927414583.mech.fmamp_amp_aref.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 65°   dip: 66°   rake: -0°
Nodal Plane 2: strike: 155°   dip: 90°   rake: -156°
Quality: azimuthalGap: -1°   stationPolarityCount: 72   misfitWeightCount: 9.7   misfit: 9999.90   stationDistributionRatio: 0.22   meanDistP: 31.3   meanDistT: 39.1   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_amp_mwp
./hypo.1762927414583.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1762927414583
Event info last updated: 2025.11.12-07:04:13 UTC
Event first association/location: 2025.11.12-06:08:34 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI