Early-est:     Irian Jaya, Indonesia    2026.03.28-07:35:48.69    q:C      mb:5.1*    Mwp:-    Mwpd:-    Td*T50Ex:0.7     fmamp_polarity:     fmamp_polarity_waveform:     hash:

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

Earthquake Details: Magnitude: mb: 5.1* [23]    Mwp: 5.1X [1]    Mwpd: - [0] Region: Irian Jaya, Indonesia Origin Time: 2026.03.28-07:35:48.69 UTC Hypocenter: lat: -3.69°  lon: 140.31°  [+/-42km]    depth: 55km  [+/-39km] Location Quality: qualityCode:  C     stdErr: 1.8s   assocPhases: 45   usedPhases: 27 minDist: 8.1°   maxDist: 145.5°   AzGap: 62°   2ndAzGap: 96°   atten: -1.01 [+/-0.27] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 20km   maxHorUnc: 42km   azMaxHorUnc: 175° 68%ConfEllipsoid:   semiMajorAxisLength: 57km   majorAxisAzimuth: 174°   majorAxisPlunge: 28°   semiIntermediateAxisLength: 33km   intermediateAxisAzimuth: 4°   intermediateAxisPlunge: 62°   semiMinorAxisLength: 25km Tsunamigeneic Assesment: Discriminants: Prob Underwater: <1% T50Ex: 0.7 [18]    Td: 1.0s [4]    Td*T50Ex: 0.7 [4]    To: 29.8s [17] Closest plate boundaries:    Woodlark - Maoke [continental convergent boundary]: distance: ~30km    Australia - Maoke [continental transform fault]: distance: ~130km    Woodlark - Australia [continental convergent boundary]: distance: ~170km    Caroline \ Woodlark [subduction zone]: distance: ~200km Subduction geometry: none or not available Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (200km)  YES (30km)  no Prob underwater:  <1%  <1%  <1% Td*T50Ex:    0.7    0.7    0.7 Td*To:      29.8      29.8      29.8 Mwp magnitude:        -        -        - Hypocenter depth:        55km        55km        55km Slab depth at epicenter:        n/a        -        - Tsunami and Rupture predictions (TEST!): No prediction: Event too small (Mwp<7.0) or too few Mwp readings (N<20)

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 53°   dip: 45°   rake: 161° Nodal Plane 2: strike: 156°   dip: 77°   rake: 46° Quality: azimuthalGap: -1°   stationPolarityCount: 23   misfitWeightCount: 8.9   misfit: 0.11   stationDistributionRatio: 0.52   meanDistP: 46.7   meanDistT: 44.4   qualityCode: C Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (FMAMP_POLARITY_WAVEFORM):    (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/_polarity_waveform
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 52°   dip: 59°   rake: 163° Nodal Plane 2: strike: 151°   dip: 75°   rake: 32° Quality: azimuthalGap: 73°   stationPolarityCount: 23   misfit: 0.24   stationDistributionRatio: 0.79   rmsAngDiffAccPref: 24.72   fracAcc30degPref: 0.80   qualityCode: C Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1774683355691
Event info last updated: 2026.03.28-08:34:00 UTC
Event first association/location: 2026.03.28-07:42:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA