Early-est:     Philippine Islands Region    2024.12.17-11:05:37.84    q:B      mb:4.8*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734433537543.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734433537543.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734433537543.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: 4.8* [23]    Mwp: - [0]    Mwpd: - [0]
Region: Philippine Islands Region
Origin Time: 2024.12.17-11:05:37.84 UTC
Hypocenter: lat: 5.14°  lon: 127.57°  [+/-15km]    depth: 137km  [+/-17km]
Location Quality: qualityCode:  B     stdErr: 0.8s   assocPhases: 58   usedPhases: 31
minDist: 2.8°   maxDist: 146.0°   AzGap: 116°   2ndAzGap: 120°   atten: -0.89 [+/-0.27]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 15km   azMaxHorUnc: 67°
68%ConfEllipsoid:   semiMajorAxisLength: 18km   majorAxisAzimuth: 247°   majorAxisPlunge: 0°   semiIntermediateAxisLength: 17km   intermediateAxisAzimuth: 155°   intermediateAxisPlunge: 82°   semiMinorAxisLength: 16km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.1 [11]    Td: 0.6Xs [1]    Td*T50Ex: - [0]    To: 1.2s [10]
Closest plate boundaries:
   Philippine Sea \ Sunda [subduction zone]: distance: ~30km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (30km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       137km
       137km
       137km
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.1734433537543.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 184°   dip: 35°   rake: 32°
Nodal Plane 2: strike: 67°   dip: 72°   rake: 121°
Quality: azimuthalGap: -1°   stationPolarityCount: 27   misfitWeightCount: 7.2   misfit: 0.22   stationDistributionRatio: 0.42   meanDistP: 55.1   meanDistT: 51.2   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734433537543.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.1734433537543.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 300°   dip: 39°   rake: -158°
Nodal Plane 2: strike: 192°   dip: 76°   rake: -53°
Quality: azimuthalGap: 102°   stationPolarityCount: 27   misfit: 0.36   stationDistributionRatio: 0.85   rmsAngDiffAccPref: 36.12   fracAcc30degPref: 0.60   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734433537543.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734433537543
Event info last updated: 2024.12.17-12:04:00 UTC
Event first association/location: 2024.12.17-11:13:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA