Early-est:     Samar, Philippines    2026.08.09-17:05:32.54    q:C      mb:5.0*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1786295132375.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1786295132375.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1786295132375.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: 5.0* [25]    Mwp: - [0]    Mwpd: - [0]
Region: Samar, Philippines
Origin Time: 2026.08.09-17:05:32.54 UTC
Hypocenter: lat: 11.47°  lon: 125.68°  [+/-15km]    depth: 15km  [+/-14km]
Location Quality: qualityCode:  C     stdErr: 1.2s   assocPhases: 59   usedPhases: 35
minDist: 21.3°   maxDist: 164.9°   AzGap: 114°   2ndAzGap: 118°   atten: -0.44 [+/-0.34]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 14km   maxHorUnc: 15km   azMaxHorUnc: 37°
68%ConfEllipsoid:   semiMajorAxisLength: 18km   majorAxisAzimuth: 217°   majorAxisPlunge: 4°   semiIntermediateAxisLength: 17km   intermediateAxisAzimuth: 127°   intermediateAxisPlunge: 0°   semiMinorAxisLength: 14km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [15]    Td: -s [0]    Td*T50Ex: - [0]    To: 2.3s [14]
Closest plate boundaries:
   Philippine Sea \ Sunda [subduction zone]: distance: ~60km
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 (60km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       15km
       15km
       15km
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.1786295132375.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 51°   dip: 27°   rake: -34°
Nodal Plane 2: strike: 172°   dip: 75°   rake: -113°
Quality: azimuthalGap: -1°   stationPolarityCount: 27   misfitWeightCount: 6.8   misfit: 0.05   stationDistributionRatio: 0.32   meanDistP: 46.8   meanDistT: 46.7   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1786295132375.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.1786295132375.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 30°   dip: 21°   rake: -101°
Nodal Plane 2: strike: 221°   dip: 69°   rake: -86°
Quality: azimuthalGap: 117°   stationPolarityCount: 27   misfit: 0.24   stationDistributionRatio: 0.70   rmsAngDiffAccPref: 34.09   fracAcc30degPref: 0.53   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1786295132375.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1786295132375
Event info last updated: 2026.08.09-18:04:00 UTC
Event first association/location: 2026.08.09-17:20:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA