Early-est:     Kyushu, Japan    2025.08.05-17:53:42.86    q:C      mb:4.1*    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: 4.1* [4]    Mwp: 4.0X [2]    Mwpd: - [0] Region: Kyushu, Japan Origin Time: 2025.08.05-17:53:42.86 UTC Hypocenter: lat: 33.29°  lon: 131.84°  [+/-38km]    depth: 15km  [+/-46km] Location Quality: qualityCode:  C     stdErr: 2.6s   assocPhases: 16   usedPhases: 9 minDist: 1.8°   maxDist: 169.7°   AzGap: 88°   2ndAzGap: 140°   atten: -1.02 [+/-0.58] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 19km   maxHorUnc: 38km   azMaxHorUnc: 138° 68%ConfEllipsoid:   semiMajorAxisLength: 55km   majorAxisAzimuth: 314°   majorAxisPlunge: 44°   semiIntermediateAxisLength: 36km   intermediateAxisAzimuth: 150°   intermediateAxisPlunge: 44°   semiMinorAxisLength: 23km Tsunamigeneic Assesment: Discriminants: Prob Underwater: 76% T50Ex: 0.9X [2]    Td: 1.2Xs [1]    Td*T50Ex: - [0]    To: 122.8Xs [2] Closest plate boundaries:    Amur - Okinawa [continental rift boundary]: distance: ~170km    Amur / Philippine Sea [subduction zone]: distance: ~250km Subduction geometry:    Zone: Ryukyu: 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 (250km)  no  no Prob underwater:  76%  76%  76% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        15km        15km        15km 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):    (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
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):    (No solution available) Nodal Plane 1: strike: 999°   dip: 99°   rake: 999° Nodal Plane 2: strike: 324°   dip: 13°   rake: 135° Quality: azimuthalGap: 0°   stationPolarityCount: 7   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: F Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1754416422974
Event info last updated: 2025.08.05-18:52:01 UTC
Event first association/location: 2025.08.05-17:56:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA