Early-est:     Solomon Islands    2025.01.26-21:22:44.34    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 [28]    Mwp: - [0]    Mwpd: - [0] Region: Solomon Islands Origin Time: 2025.01.26-21:22:44.34 UTC Hypocenter: lat: -7.38°  lon: 155.95°  [+/-18km]    depth: 68km  [+/-23km] Location Quality: qualityCode:  B     stdErr: 1.4s   assocPhases: 62   usedPhases: 35 minDist: 4.5°   maxDist: 146.0°   AzGap: 65°   2ndAzGap: 114°   atten: -1.14 [+/-0.18] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 14km   maxHorUnc: 18km   azMaxHorUnc: 152° 68%ConfEllipsoid:   semiMajorAxisLength: 26km   majorAxisAzimuth: 152°   majorAxisPlunge: 44°   semiIntermediateAxisLength: 19km   intermediateAxisAzimuth: 332°   intermediateAxisPlunge: 46°   semiMinorAxisLength: 17km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.4 [13]    Td: -s [0]    Td*T50Ex: - [0]    To: 12.2s [10] Closest plate boundaries:    Pacific / Woodlark [subduction zone]: distance: ~40km    Woodlark - Solomon Sea [oceanic transform fault]: distance: ~60km    Pacific / Solomon Sea [subduction zone]: distance: ~60km    Woodlark - Australia [oceanic transform fault]: distance: ~100km    Pacific / Australia [subduction zone]: distance: ~100km Subduction geometry:    Zone: Solomon Islands    Slab depth at epicenter: 22km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (40km)  no  YES (60km) Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        68km        68km        68km Slab depth at epicenter:        22km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 175°   dip: 10°   rake: 81° Nodal Plane 2: strike: 4°   dip: 80°   rake: 92° Quality: azimuthalGap: -1°   stationPolarityCount: 34   misfitWeightCount: 10.7   misfit: 0.12   stationDistributionRatio: 0.53   meanDistP: 32.4   meanDistT: 29.9   qualityCode: C 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: 272°   dip: 87°   rake: 145° Nodal Plane 2: strike: 4°   dip: 55°   rake: 4° Quality: azimuthalGap: 65°   stationPolarityCount: 34   misfit: 0.24   stationDistributionRatio: 0.67   rmsAngDiffAccPref: 25.37   fracAcc30degPref: 0.76   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/1737926565805
Event info last updated: 2025.01.26-22:22:46 UTC
Event first association/location: 2025.01.26-21:29:03 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI