Early-est:     Irian Jaya Region, Indonesia    2025.02.01-20:24:34.21    q:B      mb:4.8    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:     hash:     fmamp_amp_aref:     fmamp_amp_mwp:

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

Earthquake Details: Magnitude: mb: 4.8 [30]    Mwp: - [0]    Mwpd: - [0] Region: Irian Jaya Region, Indonesia Origin Time: 2025.02.01-20:24:34.21 UTC Hypocenter: lat: -4.59°  lon: 134.53°  [+/-15km]    depth: 10km  [+/-14km] Location Quality: qualityCode:  B     stdErr: 1.2s   assocPhases: 62   usedPhases: 33 minDist: 6.5°   maxDist: 152.5°   AzGap: 76°   2ndAzGap: 93°   atten: -1.09 [+/-0.20] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 15km   azMaxHorUnc: 83° 68%ConfEllipsoid:   semiMajorAxisLength: 18km   majorAxisAzimuth: 262°   majorAxisPlunge: 14°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 171°   intermediateAxisPlunge: 4°   semiMinorAxisLength: 13km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.6 [21]    Td: 0.3Xs [1]    Td*T50Ex: - [0]    To: 8.5s [15] Closest plate boundaries:    Australia - Birds Head [continental transform fault]: distance: ~20km    Australia - Maoke [continental transform fault]: distance: ~60km    Maoke - Birds Head [continental rift boundary]: distance: ~60km    Birds Head - Banda Sea [oceanic convergent boundary]: distance: ~70km 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)  YES (20km) Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        10km        10km        10km Slab depth at epicenter:        n/a        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 72°   dip: 28°   rake: 68° Nodal Plane 2: strike: 277°   dip: 64°   rake: 102° Quality: azimuthalGap: -1°   stationPolarityCount: 31   misfitWeightCount: 9.9   misfit: 0.19   stationDistributionRatio: 0.45   meanDistP: 40.3   meanDistT: 31.7   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 128°   dip: 31°   rake: 105° Nodal Plane 2: strike: 290°   dip: 60°   rake: 81° Quality: azimuthalGap: 76°   stationPolarityCount: 31   misfit: 0.24   stationDistributionRatio: 0.71   rmsAngDiffAccPref: 43.52   fracAcc30degPref: 0.38   qualityCode: D Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
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
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

Event ID: smi:KOERI/ee/event/1738441475099
Event info last updated: 2025.02.01-21:24:40 UTC
Event first association/location: 2025.02.01-20:30:31 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI