Early-est:     Jan Mayen Island Region    2025.02.03-02:33:27.69    q:B      mb:4.6    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:     hash:     fmamp_amp_aref:     fmamp_amp_mwp:

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

Earthquake Details: Magnitude: mb: 4.6 [28]    Mwp: - [0]    Mwpd: - [0] Region: Jan Mayen Island Region Origin Time: 2025.02.03-02:33:27.69 UTC Hypocenter: lat: 71.74°  lon: -3.16°  [+/-16km]    depth: 10km  [+/-14km] Location Quality: qualityCode:  B     stdErr: 1.6s   assocPhases: 36   usedPhases: 30 minDist: 5.6°   maxDist: 49.2°   AzGap: 97°   2ndAzGap: 121°   atten: -1.13 [+/-0.35] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 14km   maxHorUnc: 16km   azMaxHorUnc: 43° 68%ConfEllipsoid:   semiMajorAxisLength: 20km   majorAxisAzimuth: 223°   majorAxisPlunge: 14°   semiIntermediateAxisLength: 17km   intermediateAxisAzimuth: 313°   intermediateAxisPlunge: 1°   semiMinorAxisLength: 13km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.2 [14]    Td: -s [0]    Td*T50Ex: - [0]    To: 3.1s [9] Closest plate boundaries:    North America - Eurasia [oceanic spreading ridge]: distance: ~30km 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:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        10km        10km        10km Slab depth at epicenter:        n/a        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 78°   dip: 35°   rake: -78° Nodal Plane 2: strike: 244°   dip: 56°   rake: -98° Quality: azimuthalGap: -1°   stationPolarityCount: 28   misfitWeightCount: 6.6   misfit: 0.14   stationDistributionRatio: 0.50   meanDistP: 41.6   meanDistT: 36.1   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 56°   dip: 63°   rake: -176° Nodal Plane 2: strike: 324°   dip: 86°   rake: -27° Quality: azimuthalGap: 108°   stationPolarityCount: 28   misfit: 0.39   stationDistributionRatio: 0.65   rmsAngDiffAccPref: 23.00   fracAcc30degPref: 0.96   qualityCode: C Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
First-motion Focal Mechanism (FMAMP_AMP_AREF):    (No solution available) Nodal Plane 1: strike: 0°   dip: 0°   rake: 0° Nodal Plane 2: strike: 270°   dip: 90°   rake: 90° Quality: azimuthalGap: -1°   stationPolarityCount: 0   misfitWeightCount: -1.0   misfit: -1.00   stationDistributionRatio: -1.00   meanDistP: -1.0   meanDistT: -1.0   qualityCode: X Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_amp_aref
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (No solution available) Nodal Plane 1: strike: 0°   dip: 0°   rake: 0° Nodal Plane 2: strike: 270°   dip: 90°   rake: 90° Quality: azimuthalGap: -1°   stationPolarityCount: 0   misfitWeightCount: -1.0   misfit: -1.00   stationDistributionRatio: -1.00   meanDistP: -1.0   meanDistT: -1.0   qualityCode: X Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_amp_mwp

Event ID: smi:KOERI/ee/event/1738550006880
Event info last updated: 2025.02.03-03:33:46 UTC
Event first association/location: 2025.02.03-02:39:05 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI