Early-est:     Northern Molucca Sea    2026.06.23-04:53:40.84    q:B      mb:4.8*    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: 4.8* [15]    Mwp: - [0]    Mwpd: - [0] Region: Northern Molucca Sea Origin Time: 2026.06.23-04:53:40.84 UTC Hypocenter: lat: 2.41°  lon: 126.67°  [+/-15km]    depth: 62km  [+/-18km] Location Quality: qualityCode:  B     stdErr: 1.5s   assocPhases: 48   usedPhases: 26 minDist: 1.8°   maxDist: 158.5°   AzGap: 69°   2ndAzGap: 103°   atten: -0.76 [+/-0.42] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 15km   azMaxHorUnc: 71° 68%ConfEllipsoid:   semiMajorAxisLength: 19km   majorAxisAzimuth: 86°   majorAxisPlunge: 39°   semiIntermediateAxisLength: 18km   intermediateAxisAzimuth: 223°   intermediateAxisPlunge: 42°   semiMinorAxisLength: 16km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.4 [8]    Td: 7.0Xs [1]    Td*T50Ex: - [0]    To: 3.4s [6] Closest plate boundaries:    Sunda - Birds Head [oceanic convergent boundary]: distance: ~20km    Birds Head / Sunda [subduction zone]: distance: ~20km    Molucca Sea \ Sunda [subduction zone]: distance: ~80km    Molucca Sea \ Birds Head [subduction zone]: distance: ~80km    Molucca Sea / Sunda [subduction zone]: distance: ~260km    Philippine Sea \ Sunda [subduction zone]: distance: ~270km Subduction geometry: none or not available Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (20km)  YES (20km)  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        62km        62km        62km 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: 17°   dip: 62°   rake: -32° Nodal Plane 2: strike: 124°   dip: 62°   rake: -148° Quality: azimuthalGap: -1°   stationPolarityCount: 15   misfitWeightCount: 5.9   misfit: 0.08   stationDistributionRatio: 0.57   meanDistP: 41.5   meanDistT: 48.6   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: 116°   dip: 74°   rake: -153° Nodal Plane 2: strike: 18°   dip: 64°   rake: -17° Quality: azimuthalGap: 120°   stationPolarityCount: 15   misfit: 0.30   stationDistributionRatio: 0.84   rmsAngDiffAccPref: 32.72   fracAcc30degPref: 0.66   qualityCode: C Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1782190420729
Event info last updated: 2026.06.23-05:52:02 UTC
Event first association/location: 2026.06.23-05:01:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA