Early-est:     Tanimbar Islands Reg., Indonesia    2026.02.07-19:11:48.42    q:B      mb:4.3*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1770491508415.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1770491508415.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1770491508415.mech.hash.thumb.jpg

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

Earthquake Details:
Magnitude: mb: 4.3* [7]    Mwp: 4.4X [1]    Mwpd: - [0]
Region: Tanimbar Islands Reg., Indonesia
Origin Time: 2026.02.07-19:11:48.42 UTC
Hypocenter: lat: -7.09°  lon: 130.30°  [+/-11km]    depth: 90km  [+/-19km]
Location Quality: qualityCode:  B     stdErr: 1.3s   assocPhases: 15   usedPhases: 9
minDist: 4.6°   maxDist: 18.0°   AzGap: 140°   2ndAzGap: 234°   atten: -2.48 [+/-0.46]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 10km   maxHorUnc: 11km   azMaxHorUnc: 68°
68%ConfEllipsoid:   semiMajorAxisLength: 19km   majorAxisAzimuth: 304°   majorAxisPlunge: 82°   semiIntermediateAxisLength: 14km   intermediateAxisAzimuth: 65°   intermediateAxisPlunge: 4°   semiMinorAxisLength: 12km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.6 [7]    Td: 0.2Xs [3]    Td*T50Ex: - [0]    To: 10.3s [7]
Closest plate boundaries:
   Banda Sea - Timor [continental convergent boundary]: distance: ~40km
   Timor - Australia [continental rift boundary]: distance: ~180km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 YES (40km)
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       90km
       90km
       90km
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)
./hypo.1770491508415.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (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
./hypo.1770491508415.mech.fmamp_polarity.mechanism.jpg
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
./hypo.1770491508415.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (No solution available)
Nodal Plane 1: strike: 999°   dip: 99°   rake: 999°
Nodal Plane 2: strike: 324°   dip: 13°   rake: 135°
Quality: azimuthalGap: 0°   stationPolarityCount: 7   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: F
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1770491508415.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1770491508415
Event info last updated: 2026.02.07-20:10:01 UTC
Event first association/location: 2026.02.07-19:17:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA