Early-est:     Banda Sea    2025.01.27-10:50:12.54    q:B      mb:4.8    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1737975009239.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1737975009239.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1737975009239.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1737975009239.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: 4.8 [37]    Mwp: - [0]    Mwpd: - [0]
Region: Banda Sea
Origin Time: 2025.01.27-10:50:12.54 UTC
Hypocenter: lat: -7.42°  lon: 128.86°  [+/-13km]    depth: 104km  [+/-20km]
Location Quality: qualityCode:  B     stdErr: 1.6s   assocPhases: 83   usedPhases: 49
minDist: 6.4°   maxDist: 159.7°   AzGap: 89°   2ndAzGap: 94°   atten: -1.05 [+/-0.15]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 10km   maxHorUnc: 13km   azMaxHorUnc: 28°
68%ConfEllipsoid:   semiMajorAxisLength: 21km   majorAxisAzimuth: 195°   majorAxisPlunge: 70°   semiIntermediateAxisLength: 15km   intermediateAxisAzimuth: 36°   intermediateAxisPlunge: 19°   semiMinorAxisLength: 13km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.6 [21]    Td: 0.4Xs [3]    Td*T50Ex: - [0]    To: 1.6s [13]
Closest plate boundaries:
   Banda Sea - Timor [oceanic convergent boundary]: distance: ~90km
   Timor - Australia [continental transform fault]: distance: ~180km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 YES (90km)
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       104km
       104km
       104km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1737975009239.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 41°   dip: 32°   rake: 7°
Nodal Plane 2: strike: 305°   dip: 86°   rake: 122°
Quality: azimuthalGap: -1°   stationPolarityCount: 44   misfitWeightCount: 12.5   misfit: 0.16   stationDistributionRatio: 0.45   meanDistP: 28.5   meanDistT: 28.6   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1737975009239.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):
Nodal Plane 1: strike: 177°   dip: 78°   rake: -160°
Nodal Plane 2: strike: 83°   dip: 70°   rake: -13°
Quality: azimuthalGap: 88°   stationPolarityCount: 44   misfit: 0.30   stationDistributionRatio: 0.67   rmsAngDiffAccPref: 16.57   fracAcc30degPref: 0.96   qualityCode: B
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1737975009239.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.1737975009239.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.1737975009239.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1737975009239
Event info last updated: 2025.01.27-11:50:34 UTC
Event first association/location: 2025.01.27-10:55:28 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI