Early-est:     Banda Sea    2025.01.31-18:11:11.41    q:A      mb:4.6    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1738347073435.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1738347073435.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1738347073435.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1738347073435.mech.fmamp_amp_mwp.thumb.jpg

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

Earthquake Details:
Magnitude: mb: 4.6 [33]    Mwp: - [0]    Mwpd: - [0]
Region: Banda Sea
Origin Time: 2025.01.31-18:11:11.41 UTC
Hypocenter: lat: -6.87°  lon: 129.75°  [+/-12km]    depth: 152km  [+/-19km]
Location Quality: qualityCode:  A     stdErr: 0.9s   assocPhases: 66   usedPhases: 36
minDist: 6.4°   maxDist: 87.5°   AzGap: 142°   2ndAzGap: 151°   atten: -1.37 [+/-0.18]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 10km   maxHorUnc: 12km   azMaxHorUnc: 10°
68%ConfEllipsoid:   semiMajorAxisLength: 19km   majorAxisAzimuth: 190°   majorAxisPlunge: 71°   semiIntermediateAxisLength: 15km   intermediateAxisAzimuth: 11°   intermediateAxisPlunge: 19°   semiMinorAxisLength: 12km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.1 [18]    Td: 0.2Xs [1]    Td*T50Ex: - [0]    To: 1.3s [13]
Closest plate boundaries:
   Banda Sea - Timor [continental convergent boundary]: distance: ~40km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 YES (40km)
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       152km
       152km
       152km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1738347073435.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 174°   dip: 3°   rake: -44°
Nodal Plane 2: strike: 308°   dip: 88°   rake: -92°
Quality: azimuthalGap: -1°   stationPolarityCount: 32   misfitWeightCount: 7.3   misfit: 0.16   stationDistributionRatio: 0.36   meanDistP: 38.5   meanDistT: 41.5   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1738347073435.mech.fmamp_polarity.mechanism.jpg
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: 154°   stationPolarityCount: 32   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1738347073435.mech.hash.mechanism.jpg
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
./hypo.1738347073435.mech.fmamp_amp_aref.mechanism.jpg
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
./hypo.1738347073435.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1738347073435
Event info last updated: 2025.01.31-19:11:33 UTC
Event first association/location: 2025.01.31-18:17:02 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI