Early-est:     New Britain Region, P.N.G.    2025.04.10-02:43:32.83    q:B      mb:5.1    Mwp:5.8*    Mwpd:-    Td*T50Ex:2.0     fmamp_polarity:./hypo.1744253011001.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1744253011001.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1744253011001.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 [26]    Mwp: 5.8* [8]    Mwpd: 5.8Xinv [8]
Region: New Britain Region, P.N.G.
Origin Time: 2025.04.10-02:43:32.83 UTC
Hypocenter: lat: -6.15°  lon: 151.47°  [+/-15km]    depth: 30km  [+/-19km]
Location Quality: qualityCode:  B     stdErr: 1.8s   assocPhases: 72   usedPhases: 38
minDist: 2.1°   maxDist: 148.2°   AzGap: 69°   2ndAzGap: 96°   atten: -1.09 [+/-0.27]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 15km   maxHorUnc: 15km   azMaxHorUnc: 79°
68%ConfEllipsoid:   semiMajorAxisLength: 21km   majorAxisAzimuth: 308°   majorAxisPlunge: 48°   semiIntermediateAxisLength: 18km   intermediateAxisAzimuth: 44°   intermediateAxisPlunge: 5°   semiMinorAxisLength: 16km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [23]    Td: 3.8s [10]    Td*T50Ex: 2.0 [10]    To: 24.1s [22]
Closest plate boundaries:
   South Bismarck / Solomon Sea [subduction zone]: distance: ~10km
   Solomon Sea \ Woodlark [subduction zone]: distance: ~190km
Subduction geometry:    Zone: Solomon Islands: 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 (10km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   2.0
   2.0
   2.0
Td*To:
     91.6
     91.6
     91.6
Mwp magnitude:
       5.8*
       5.8*
       5.8*
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.1744253011001.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 98°   dip: 58°   rake: 27°
Nodal Plane 2: strike: 353°   dip: 68°   rake: 145°
Quality: azimuthalGap: -1°   stationPolarityCount: 28   misfitWeightCount: 9.5   misfit: 0.12   stationDistributionRatio: 0.47   meanDistP: 48.0   meanDistT: 40.7   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1744253011001.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.1744253011001.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 338°   dip: 58°   rake: 127°
Nodal Plane 2: strike: 104°   dip: 47°   rake: 46°
Quality: azimuthalGap: 68°   stationPolarityCount: 28   misfit: 0.30   stationDistributionRatio: 0.74   rmsAngDiffAccPref: 35.70   fracAcc30degPref: 0.47   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1744253011001.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1744253011001
Event info last updated: 2025.04.10-03:42:00 UTC
Event first association/location: 2025.04.10-02:50:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA