Early-est:     Solomon Islands    2025.08.02-13:35:37.90    q:C      mb:4.6*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:     fmamp_polarity_waveform:     hash:

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

Earthquake Details: Magnitude: mb: 4.6* [12]    Mwp: 4.5X [1]    Mwpd: - [0] Region: Solomon Islands Origin Time: 2025.08.02-13:35:37.90 UTC Hypocenter: lat: -6.25°  lon: 155.07°  [+/-29km]    depth: 121km  [+/-24km] Location Quality: qualityCode:  C     stdErr: 0.6s   assocPhases: 42   usedPhases: 15 minDist: 3.6°   maxDist: 83.2°   AzGap: 98°   2ndAzGap: 121°   atten: -1.92 [+/-0.36] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 16km   maxHorUnc: 29km   azMaxHorUnc: 23° 68%ConfEllipsoid:   semiMajorAxisLength: 37km   majorAxisAzimuth: 21°   majorAxisPlunge: 15°   semiIntermediateAxisLength: 24km   intermediateAxisAzimuth: 262°   intermediateAxisPlunge: 61°   semiMinorAxisLength: 19km Tsunamigeneic Assesment: Discriminants: Prob Underwater: 86% T50Ex: 0.0 [4]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.2s [4] Closest plate boundaries:    Pacific - North Bismarck [continental transform fault]: distance: ~60km    North Bismarck / Solomon Sea [subduction zone]: distance: ~90km    Pacific / Solomon Sea [subduction zone]: distance: ~120km    North Bismarck - South Bismarck [oceanic transform fault]: distance: ~130km    South Bismarck / Solomon Sea [subduction zone]: distance: ~130km Subduction geometry:    Zone: Solomon Islands: DEBUG: error: [Errno 2] No such file or directory: 'gmt'    Slab depth at epicenter: error: evaluating slab depth: -999.9 Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (90km)  no  YES (60km) Prob underwater:  86%  86%  86% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        121km        121km        121km Slab depth at epicenter:        n/a        -        - Tsunami and Rupture predictions (TEST!): No prediction: Event too small (Mwp<7.0) or too few Mwp readings (N<20)

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 6°   dip: 50°   rake: 160° Nodal Plane 2: strike: 110°   dip: 74°   rake: 42° Quality: azimuthalGap: -1°   stationPolarityCount: 16   misfitWeightCount: 5.7   misfit: 0.09   stationDistributionRatio: 0.41   meanDistP: 50.6   meanDistT: 47.9   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (FMAMP_POLARITY_WAVEFORM):    (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/_polarity_waveform
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 166°   dip: 64°   rake: 140° Nodal Plane 2: strike: 277°   dip: 55°   rake: 33° Quality: azimuthalGap: 99°   stationPolarityCount: 16   misfit: 0.23   stationDistributionRatio: 0.74   rmsAngDiffAccPref: 31.40   fracAcc30degPref: 0.43   qualityCode: C Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1754141738063
Event info last updated: 2025.08.02-14:34:07 UTC
Event first association/location: 2025.08.02-13:43:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA