Early-est:     Mindanao, Philippines    2026.10.01-05:34:17.62    q:C      mb:5.1*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1790832852997.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1790832852997.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1790832852997.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: 5.1* [22]    Mwp: - [0]    Mwpd: - [0]
Region: Mindanao, Philippines
Origin Time: 2026.10.01-05:34:17.62 UTC
Hypocenter: lat: 6.04°  lon: 123.97°  [+/-16km]    depth: 55km  [+/-36km]
Location Quality: qualityCode:  C     stdErr: 1.4s   assocPhases: 54   usedPhases: 32
minDist: 1.9°   maxDist: 164.3°   AzGap: 111°   2ndAzGap: 117°   atten: 0.22 [+/-0.29]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 14km   maxHorUnc: 16km   azMaxHorUnc: 54°
68%ConfEllipsoid:   semiMajorAxisLength: 36km   majorAxisAzimuth: 51°   majorAxisPlunge: 75°   semiIntermediateAxisLength: 18km   intermediateAxisAzimuth: 311°   intermediateAxisPlunge: 2°   semiMinorAxisLength: 17km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [14]    Td: 0.7Xs [1]    Td*T50Ex: - [0]    To: 4.3s [14]
Closest plate boundaries:
   Philippine Sea \ Sunda [subduction zone]: distance: ~370km
   Molucca Sea / Sunda [subduction zone]: distance: ~440km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       55km
       55km
       55km
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.1790832852997.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 40°   dip: 75°   rake: 168°
Nodal Plane 2: strike: 133°   dip: 78°   rake: 15°
Quality: azimuthalGap: -1°   stationPolarityCount: 25   misfitWeightCount: 6.6   misfit: 0.04   stationDistributionRatio: 0.42   meanDistP: 50.8   meanDistT: 40.6   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1790832852997.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.1790832852997.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):
Nodal Plane 1: strike: 220°   dip: 75°   rake: -152°
Nodal Plane 2: strike: 122°   dip: 63°   rake: -17°
Quality: azimuthalGap: 76°   stationPolarityCount: 25   misfit: 0.13   stationDistributionRatio: 0.77   rmsAngDiffAccPref: 26.99   fracAcc30degPref: 0.84   qualityCode: B
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1790832852997.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1790832852997
Event info last updated: 2026.10.01-06:33:00 UTC
Event first association/location: 2026.10.01-05:41:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA