Early-est:     Scotia Sea    2025.12.14-15:54:31.32    q:B      mb:4.7    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: 4.7 [16]    Mwp: - [0]    Mwpd: - [0] Region: Scotia Sea Origin Time: 2025.12.14-15:54:31.32 UTC Hypocenter: lat: -58.75°  lon: -58.74°  [+/-16km]    depth: 71km  [+/-17km] Location Quality: qualityCode:  B     stdErr: 1.2s   assocPhases: 54   usedPhases: 17 minDist: 7.1°   maxDist: 151.1°   AzGap: 119°   2ndAzGap: 139°   atten: -1.58 [+/-0.61] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 16km   azMaxHorUnc: 58° 68%ConfEllipsoid:   semiMajorAxisLength: 20km   majorAxisAzimuth: 64°   majorAxisPlunge: 27°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 189°   intermediateAxisPlunge: 49°   semiMinorAxisLength: 13km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.3 [7]    Td: -s [0]    Td*T50Ex: - [0]    To: 5.7s [6] Closest plate boundaries:    Scotia - Antarctica [oceanic convergent boundary]: distance: ~100km Subduction geometry: none or not available Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  no  YES (100km)  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        71km        71km        71km Slab depth at epicenter:        n/a        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 87°   dip: 24°   rake: -140° Nodal Plane 2: strike: 320°   dip: 75°   rake: -71° Quality: azimuthalGap: -1°   stationPolarityCount: 17   misfitWeightCount: 5.0   misfit: 0.10   stationDistributionRatio: 0.30   meanDistP: 48.9   meanDistT: 45.6   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: 238°   dip: 49°   rake: -149° Nodal Plane 2: strike: 127°   dip: 67°   rake: -45° Quality: azimuthalGap: 139°   stationPolarityCount: 17   misfit: 0.19   stationDistributionRatio: 0.84   rmsAngDiffAccPref: 38.36   fracAcc30degPref: 0.63   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: nan° Nodal Plane 2: strike: nan°   dip: nan°   rake: nan° 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: nan° Nodal Plane 2: strike: nan°   dip: nan°   rake: nan° 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/1765727661202
Event info last updated: 2025.12.14-16:54:37 UTC
Event first association/location: 2025.12.14-16:00:26 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI