Early-est:     Banda Sea    2025.06.02-20:45:53.02    q:B      mb:4.5    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1748897155881.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1748897155881.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1748897155881.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1748897155881.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 [20]    Mwp: - [0]    Mwpd: - [0]
Region: Banda Sea
Origin Time: 2025.06.02-20:45:53.02 UTC
Hypocenter: lat: -6.90°  lon: 129.20°  [+/-15km]    depth: 135km  [+/-24km]
Location Quality: qualityCode:  B     stdErr: 1.5s   assocPhases: 44   usedPhases: 24
minDist: 6.6°   maxDist: 151.2°   AzGap: 52°   2ndAzGap: 101°   atten: -1.65 [+/-0.25]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 14km   maxHorUnc: 15km   azMaxHorUnc: 110°
68%ConfEllipsoid:   semiMajorAxisLength: 25km   majorAxisAzimuth: 235°   majorAxisPlunge: 69°   semiIntermediateAxisLength: 18km   intermediateAxisAzimuth: 133°   intermediateAxisPlunge: 5°   semiMinorAxisLength: 16km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [11]    Td: 0.2Xs [1]    Td*T50Ex: - [0]    To: 69.8s [4]
Closest plate boundaries:
   Banda Sea - Timor [oceanic convergent boundary]: distance: ~60km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 YES (60km)
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       135km
       135km
       135km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1748897155881.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 167°   dip: 42°   rake: 13°
Nodal Plane 2: strike: 68°   dip: 82°   rake: 131°
Quality: azimuthalGap: -1°   stationPolarityCount: 23   misfitWeightCount: 12.1   misfit: 0.14   stationDistributionRatio: 0.35   meanDistP: 35.8   meanDistT: 28.7   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1748897155881.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 289°   dip: 60°   rake: -85°
Nodal Plane 2: strike: 100°   dip: 30°   rake: -98°
Quality: azimuthalGap: 78°   stationPolarityCount: 23   misfit: 0.26   stationDistributionRatio: 0.73   rmsAngDiffAccPref: 44.37   fracAcc30degPref: 0.37   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1748897155881.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.1748897155881.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.1748897155881.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1748897155881
Event info last updated: 2025.06.02-21:46:06 UTC
Event first association/location: 2025.06.02-20:50:50 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI