Early-est:     Talaud Islands, Indonesia    2026.02.14-01:02:24.65    q:B      mb:4.9*    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: 4.9* [19]    Mwp: 4.6X [2]    Mwpd: 5.8Xinv [1] Region: Talaud Islands, Indonesia Origin Time: 2026.02.14-01:02:24.65 UTC Hypocenter: lat: 3.96°  lon: 126.72°  [+/-20km]    depth: 96km  [+/-16km] Location Quality: qualityCode:  B     stdErr: 1.4s   assocPhases: 46   usedPhases: 19 minDist: 3.3°   maxDist: 160.9°   AzGap: 114°   2ndAzGap: 131°   atten: -1.51 [+/-0.37] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 20km   azMaxHorUnc: 32° 68%ConfEllipsoid:   semiMajorAxisLength: 25km   majorAxisAzimuth: 212°   majorAxisPlunge: 0°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 122°   intermediateAxisPlunge: 56°   semiMinorAxisLength: 15km Tsunamigeneic Assesment: Discriminants: Prob Underwater: 89% T50Ex: 0.4 [13]    Td: 0.9Xs [1]    Td*T50Ex: - [0]    To: 7.0s [12] Closest plate boundaries:    Sunda - Birds Head [oceanic convergent boundary]: distance: ~180km    Birds Head / Sunda [subduction zone]: distance: ~180km    Philippine Sea \ Sunda [subduction zone]: distance: ~180km    Molucca Sea \ Sunda [subduction zone]: distance: ~250km    Molucca Sea \ Birds Head [subduction zone]: distance: ~250km    Birds Head / Philippine Sea [subduction zone]: distance: ~420km Subduction geometry: none or not available Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (180km)  no  no Prob underwater:  89%  89%  89% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        96km        96km        96km 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: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 132°   dip: 64°   rake: -17° Nodal Plane 2: strike: 230°   dip: 75°   rake: -153° Quality: azimuthalGap: -1°   stationPolarityCount: 20   misfitWeightCount: 9.6   misfit: 0.20   stationDistributionRatio: 0.47   meanDistP: 51.3   meanDistT: 51.8   qualityCode: D 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: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 249°   dip: 42°   rake: -129° Nodal Plane 2: strike: 117°   dip: 59°   rake: -60° Quality: azimuthalGap: 76°   stationPolarityCount: 20   misfit: 0.28   stationDistributionRatio: 0.73   rmsAngDiffAccPref: 39.49   fracAcc30degPref: 0.46   qualityCode: D Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1771030944049
Event info last updated: 2026.02.14-02:01:00 UTC
Event first association/location: 2026.02.14-01:09:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA