Early-est:     New Ireland Region, P.N.G.    2025.04.12-03:47:04.63    q:A      mb:5.5    Mwp:6.2*    Mwpd:-    Td*T50Ex:0.7     fmamp_polarity:./hypo.1744429630160.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1744429630160.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1744429630160.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: 5.5 [74]    Mwp: 6.2* [39]    Mwpd: 6.2Xinv [40]
Region: New Ireland Region, P.N.G.
Origin Time: 2025.04.12-03:47:04.63 UTC
Hypocenter: lat: -4.62°  lon: 153.27°  [+/-14km]    depth: 5km  [+/-21km]
Location Quality: qualityCode:  A     stdErr: 1.5s   assocPhases: 329   usedPhases: 175
minDist: 7.7°   maxDist: 169.2°   AzGap: 28°   2ndAzGap: 36°   atten: -1.20 [+/-0.24]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 14km   azMaxHorUnc: 83°
68%ConfEllipsoid:   semiMajorAxisLength: 24km   majorAxisAzimuth: 256°   majorAxisPlunge: 57°   semiIntermediateAxisLength: 15km   intermediateAxisAzimuth: 141°   intermediateAxisPlunge: 15°   semiMinorAxisLength: 14km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [72]    Td: 1.6s [13]    Td*T50Ex: 0.7 [13]    To: 6.6s [70]
Closest plate boundaries:
   North Bismarck - South Bismarck [continental transform fault]: distance: ~40km
   South Bismarck / Solomon Sea [subduction zone]: distance: ~130km
   Pacific - North Bismarck [oceanic transform fault]: distance: ~140km
   North Bismarck / Solomon Sea [subduction zone]: distance: ~200km
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 (130km)
 no
 YES (40km)
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   0.7
   0.7
   0.7
Td*To:
     10.6
     10.6
     10.6
Mwp magnitude:
       6.2*
       6.2*
       6.2*
Hypocenter depth:
       5km
       5km
       5km
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.1744429630160.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 108°   dip: 60°   rake: 9°
Nodal Plane 2: strike: 13°   dip: 82°   rake: 150°
Quality: azimuthalGap: -1°   stationPolarityCount: 77   misfitWeightCount: 11.7   misfit: 0.05   stationDistributionRatio: 0.34   meanDistP: 44.7   meanDistT: 29.4   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1744429630160.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (FMAMP_POLARITY_WAVEFORM):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 165°   dip: 8°   rake: 9°
Nodal Plane 2: strike: 66°   dip: 89°   rake: 98°
Quality: azimuthalGap: -1°   stationPolarityCount: 15   misfitWeightCount: 3.0   misfit: 0.00   stationDistributionRatio: 0.78   meanDistP: 50.0   meanDistT: 39.3   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity_waveform
./hypo.1744429630160.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):
Nodal Plane 1: strike: 9°   dip: 87°   rake: 160°
Nodal Plane 2: strike: 100°   dip: 70°   rake: 3°
Quality: azimuthalGap: 55°   stationPolarityCount: 77   misfit: 0.23   stationDistributionRatio: 0.71   rmsAngDiffAccPref: 19.24   fracAcc30degPref: 0.94   qualityCode: B
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1744429630160.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1744429630160
Event info last updated: 2025.04.12-04:46:02 UTC
Event first association/location: 2025.04.12-03:54:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA