Early-est:     Ceram Sea    2026.02.14-14:21:53.58    q:B      mb:4.9*    Mwp:5.0    Mwpd:-    Td*T50Ex:0.4     fmamp_polarity:./hypo.1771078914607.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1771078914607.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1771078914607.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: 4.9* [24]    Mwp: 5.0 [5]    Mwpd: 5.4Xinv [3]
Region: Ceram Sea
Origin Time: 2026.02.14-14:21:53.58 UTC
Hypocenter: lat: -2.85°  lon: 128.16°  [+/-13km]    depth: 30km  [+/-17km]
Location Quality: qualityCode:  B     stdErr: 1.9s   assocPhases: 60   usedPhases: 32
minDist: 3.7°   maxDist: 151.1°   AzGap: 71°   2ndAzGap: 87°   atten: -1.16 [+/-0.26]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 13km   azMaxHorUnc: 113°
68%ConfEllipsoid:   semiMajorAxisLength: 18km   majorAxisAzimuth: 307°   majorAxisPlunge: 57°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 87°   intermediateAxisPlunge: 26°   semiMinorAxisLength: 16km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: 76%
T50Ex: 0.5 [16]    Td: 0.8s [5]    Td*T50Ex: 0.4 [5]    To: 14.1s [14]
Closest plate boundaries:
   Birds Head - Banda Sea [continental convergent boundary]: distance: ~70km
   Birds Head \ Banda Sea [subduction zone]: distance: ~70km
   Molucca Sea - Banda Sea [continental transform fault]: distance: ~70km
   Molucca Sea - Birds Head [continental transform fault]: distance: ~130km
   Molucca Sea \ Birds Head [subduction zone]: distance: ~380km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (70km)
 YES (70km)
 YES (70km)
Prob underwater:
 76%
 76%
 76%
Td*T50Ex:
   0.4
   0.4
   0.4
Td*To:
     11.3
     11.3
     11.3
Mwp magnitude:
       5.0
       5.0
       5.0
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)
./hypo.1771078914607.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 79°   dip: 51°   rake: 176°
Nodal Plane 2: strike: 172°   dip: 87°   rake: 39°
Quality: azimuthalGap: -1°   stationPolarityCount: 26   misfitWeightCount: 11.7   misfit: 0.16   stationDistributionRatio: 0.42   meanDistP: 40.8   meanDistT: 50.9   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1771078914607.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.1771078914607.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):
Nodal Plane 1: strike: 76°   dip: 57°   rake: 180°
Nodal Plane 2: strike: 166°   dip: 90°   rake: 33°
Quality: azimuthalGap: 86°   stationPolarityCount: 26   misfit: 0.33   stationDistributionRatio: 0.75   rmsAngDiffAccPref: 21.43   fracAcc30degPref: 0.93   qualityCode: B
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1771078914607.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1771078914607
Event info last updated: 2026.02.14-15:20:01 UTC
Event first association/location: 2026.02.14-14:27:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA