Early-est:     Northern Molucca Sea    2026.04.02-19:08:04.29    q:B      mb:5.0*    Mwp:-    Mwpd:-    Td*T50Ex:-     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: 5.0* [22]    Mwp: 4.3X [1]    Mwpd: - [0] Region: Northern Molucca Sea Origin Time: 2026.04.02-19:08:04.29 UTC Hypocenter: lat: 1.09°  lon: 126.39°  [+/-25km]    depth: 30km  [+/-46km] Location Quality: qualityCode:  B     stdErr: 1.7s   assocPhases: 62   usedPhases: 32 minDist: 1.0°   maxDist: 157.2°   AzGap: 44°   2ndAzGap: 68°   atten: -0.92 [+/-0.28] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 19km   maxHorUnc: 25km   azMaxHorUnc: 75° 68%ConfEllipsoid:   semiMajorAxisLength: 47km   majorAxisAzimuth: 59°   majorAxisPlunge: 77°   semiIntermediateAxisLength: 29km   intermediateAxisAzimuth: 259°   intermediateAxisPlunge: 12°   semiMinorAxisLength: 23km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.3 [18]    Td: 7.0Xs [1]    Td*T50Ex: - [0]    To: 2.4s [18] Closest plate boundaries:    Molucca Sea \ Sunda [subduction zone]: distance: ~30km    Molucca Sea \ Birds Head [subduction zone]: distance: ~30km    Birds Head / Sunda [subduction zone]: distance: ~70km    Molucca Sea / Sunda [subduction zone]: distance: ~110km Subduction geometry: none or not available Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (30km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        30km        30km        30km 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: 253°   dip: 40°   rake: -96° Nodal Plane 2: strike: 81°   dip: 50°   rake: -85° Quality: azimuthalGap: -1°   stationPolarityCount: 25   misfitWeightCount: 9.1   misfit: 0.10   stationDistributionRatio: 0.44   meanDistP: 35.7   meanDistT: 47.3   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): Nodal Plane 1: strike: 254°   dip: 40°   rake: -92° Nodal Plane 2: strike: 76°   dip: 50°   rake: -89° Quality: azimuthalGap: 92°   stationPolarityCount: 25   misfit: 0.23   stationDistributionRatio: 0.77   rmsAngDiffAccPref: 21.08   fracAcc30degPref: 0.87   qualityCode: B Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1775156890754
Event info last updated: 2026.04.02-20:07:00 UTC
Event first association/location: 2026.04.02-19:14:07 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA