Early-est:     Northern Molucca Sea    2026.10.10-02:00:46.11    q:B      mb:5.1    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: 5.1 [50]    Mwp: - [0]    Mwpd: - [0] Region: Northern Molucca Sea Origin Time: 2026.10.10-02:00:46.11 UTC Hypocenter: lat: 1.40°  lon: 126.48°  [+/-18km]    depth: 20km  [+/-35km] Location Quality: qualityCode:  B     stdErr: 1.4s   assocPhases: 80   usedPhases: 57 minDist: 9.3°   maxDist: 145.2°   AzGap: 58°   2ndAzGap: 91°   atten: -0.91 [+/-0.22] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 14km   maxHorUnc: 18km   azMaxHorUnc: 46° 68%ConfEllipsoid:   semiMajorAxisLength: 37km   majorAxisAzimuth: 222°   majorAxisPlunge: 66°   semiIntermediateAxisLength: 18km   intermediateAxisAzimuth: 95°   intermediateAxisPlunge: 15°   semiMinorAxisLength: 17km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.3 [34]    Td: 1.2Xs [3]    Td*T50Ex: - [0]    To: 1.9s [29] Closest plate boundaries:    Birds Head / Sunda [subduction zone]: distance: ~30km    Molucca Sea \ Sunda [subduction zone]: distance: ~30km    Molucca Sea \ Birds Head [subduction zone]: distance: ~30km    Sunda - Birds Head [oceanic convergent boundary]: distance: ~110km    Molucca Sea / Sunda [subduction zone]: distance: ~150km Subduction geometry: none or not available Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (30km)  YES (110km)  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        20km        20km        20km Slab depth at epicenter:        n/a        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 124°   dip: 41°   rake: -98° Nodal Plane 2: strike: 315°   dip: 50°   rake: -83° Quality: azimuthalGap: -1°   stationPolarityCount: 50   misfitWeightCount: 10.9   misfit: 0.13   stationDistributionRatio: 0.37   meanDistP: 35.3   meanDistT: 30.9   qualityCode: C Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 290°   dip: 56°   rake: -93° Nodal Plane 2: strike: 115°   dip: 34°   rake: -85° Quality: azimuthalGap: 57°   stationPolarityCount: 50   misfit: 0.40   stationDistributionRatio: 0.73   rmsAngDiffAccPref: 41.20   fracAcc30degPref: 0.53   qualityCode: D 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/1791597645977
Event info last updated: 2026.10.10-03:00:49 UTC
Event first association/location: 2026.10.10-02:06:50 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI