Early-est:     Kyushu, Japan    2024.12.17-04:09:35.49    q:A      mb:5.3*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734408575778.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734408575778.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734408575778.mech.hash.thumb.jpg

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

Earthquake Details:
Magnitude: mb: 5.3* [107]    Mwp: - [0]    Mwpd: - [0]
Region: Kyushu, Japan
Origin Time: 2024.12.17-04:09:35.49 UTC
Hypocenter: lat: 31.19°  lon: 130.22°  [+/-13km]    depth: 156km  [+/-12km]
Location Quality: qualityCode:  A     stdErr: 1.1s   assocPhases: 193   usedPhases: 136
minDist: 0.4°   maxDist: 171.8°   AzGap: 30°   2ndAzGap: 41°   atten: -0.68 [+/-0.15]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 9km   maxHorUnc: 13km   azMaxHorUnc: 111°
68%ConfEllipsoid:   semiMajorAxisLength: 17km   majorAxisAzimuth: 108°   majorAxisPlunge: 22°   semiIntermediateAxisLength: 12km   intermediateAxisAzimuth: 350°   intermediateAxisPlunge: 49°   semiMinorAxisLength: 11km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.0 [112]    Td: 1.9Xs [2]    Td*T50Ex: - [0]    To: 1.9s [111]
Closest plate boundaries:
   Amur - Okinawa [continental rift boundary]: distance: ~90km
   Yangtze - Okinawa [continental transform fault]: distance: ~100km
   Amur - Yangtze [continental transform fault]: distance: ~100km
   Okinawa / Philippine Sea [subduction zone]: distance: ~230km
   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 (230km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       156km
       156km
       156km
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)
./hypo.1734408575778.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 270°   dip: 27°   rake: 164°
Nodal Plane 2: strike: 13°   dip: 83°   rake: 63°
Quality: azimuthalGap: -1°   stationPolarityCount: 120   misfitWeightCount: 25.0   misfit: 0.21   stationDistributionRatio: 0.60   meanDistP: 41.3   meanDistT: 28.0   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734408575778.mech.fmamp_polarity.mechanism.jpg
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
./hypo.1734408575778.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 254°   dip: 27°   rake: 160°
Nodal Plane 2: strike: 2°   dip: 81°   rake: 64°
Quality: azimuthalGap: 34°   stationPolarityCount: 120   misfit: 0.32   stationDistributionRatio: 0.72   rmsAngDiffAccPref: 32.72   fracAcc30degPref: 0.64   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734408575778.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734408575778
Event info last updated: 2024.12.17-05:08:02 UTC
Event first association/location: 2024.12.17-04:14:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA