Early-est:     Banda Sea    2025.02.01-00:55:24.51    q:B      mb:4.5    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1738371325069.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1738371325069.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1738371325069.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1738371325069.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: 4.5 [17]    Mwp: - [0]    Mwpd: - [0]
Region: Banda Sea
Origin Time: 2025.02.01-00:55:24.51 UTC
Hypocenter: lat: -7.42°  lon: 128.57°  [+/-13km]    depth: 118km  [+/-18km]
Location Quality: qualityCode:  B     stdErr: 1.4s   assocPhases: 33   usedPhases: 18
minDist: 6.5°   maxDist: 151.1°   AzGap: 158°   2ndAzGap: 172°   atten: -1.25 [+/-0.13]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 13km   azMaxHorUnc: 3°
68%ConfEllipsoid:   semiMajorAxisLength: 20km   majorAxisAzimuth: 173°   majorAxisPlunge: 51°   semiIntermediateAxisLength: 15km   intermediateAxisAzimuth: 62°   intermediateAxisPlunge: 16°   semiMinorAxisLength: 14km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.3 [8]    Td: 0.2Xs [1]    Td*T50Ex: - [0]    To: 1.1Xs [3]
Closest plate boundaries:
   Banda Sea - Timor [oceanic convergent boundary]: distance: ~70km
   Timor - Australia [continental transform fault]: distance: ~190km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 YES (70km)
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       118km
       118km
       118km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1738371325069.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 199°   dip: 44°   rake: -113°
Nodal Plane 2: strike: 49°   dip: 50°   rake: -70°
Quality: azimuthalGap: -1°   stationPolarityCount: 18   misfitWeightCount: 8.4   misfit: 0.16   stationDistributionRatio: 0.34   meanDistP: 35.0   meanDistT: 47.0   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1738371325069.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: 158°   stationPolarityCount: 18   misfit: 0.99   stationDistributionRatio: 0.83   rmsAngDiffAccPref: 39.65   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1738371325069.mech.hash.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_AREF):    (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/_amp_aref
./hypo.1738371325069.mech.fmamp_amp_aref.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (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/_amp_mwp
./hypo.1738371325069.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1738371325069
Event info last updated: 2025.02.01-01:56:02 UTC
Event first association/location: 2025.02.01-01:07:02 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI