Early-est:     Mindanao, Philippines    2026.02.05-18:15:51.29    q:B      mb:5.1*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1770315353343.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1770315353343.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1770315353343.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* [23]    Mwp: - [0]    Mwpd: - [0]
Region: Mindanao, Philippines
Origin Time: 2026.02.05-18:15:51.29 UTC
Hypocenter: lat: 9.95°  lon: 125.99°  [+/-36km]    depth: 155km  [+/-33km]
Location Quality: qualityCode:  B     stdErr: 1.3s   assocPhases: 48   usedPhases: 28
minDist: 2.9°   maxDist: 151.0°   AzGap: 122°   2ndAzGap: 126°   atten: -1.41 [+/-0.32]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 19km   maxHorUnc: 36km   azMaxHorUnc: 61°
68%ConfEllipsoid:   semiMajorAxisLength: 48km   majorAxisAzimuth: 239°   majorAxisPlunge: 26°   semiIntermediateAxisLength: 30km   intermediateAxisAzimuth: 103°   intermediateAxisPlunge: 56°   semiMinorAxisLength: 22km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: 54%
T50Ex: 0.2 [10]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.1s [10]
Closest plate boundaries:
   Philippine Sea \ Sunda [subduction zone]: distance: ~70km
Subduction geometry:    Zone: Philippines: DEBUG: error: [Errno 2] No such file or directory: 'gmt'    Slab depth at epicenter: error: evaluating slab depth: -999.9
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (70km)
 no
 no
Prob underwater:
 54%
 54%
 54%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       155km
       155km
       155km
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.1770315353343.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 156°   dip: 33°   rake: 37°
Nodal Plane 2: strike: 34°   dip: 71°   rake: 117°
Quality: azimuthalGap: -1°   stationPolarityCount: 21   misfitWeightCount: 7.1   misfit: 0.01   stationDistributionRatio: 0.52   meanDistP: 48.2   meanDistT: 30.3   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1770315353343.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.1770315353343.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):
Nodal Plane 1: strike: 151°   dip: 37°   rake: 37°
Nodal Plane 2: strike: 30°   dip: 69°   rake: 121°
Quality: azimuthalGap: 129°   stationPolarityCount: 21   misfit: 0.16   stationDistributionRatio: 0.87   rmsAngDiffAccPref: 16.93   fracAcc30degPref: 1.00   qualityCode: B
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1770315353343.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1770315353343
Event info last updated: 2026.02.05-19:13:16 UTC
Event first association/location: 2026.02.05-18:29:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA