Early-est:     Central Alaska    2024.12.18-04:44:39.12    q:C      mb:4.1*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734497072405.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734497072405.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734497072405.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: 4.1* [7]    Mwp: - [0]    Mwpd: - [0]
Region: Central Alaska
Origin Time: 2024.12.18-04:44:39.12 UTC
Hypocenter: lat: 63.39°  lon: -150.62°  [+/-46km]    depth: 165km  [+/-27km]
Location Quality: qualityCode:  C     stdErr: 1.9s   assocPhases: 30   usedPhases: 11
minDist: 1.9°   maxDist: 69.0°   AzGap: 199°   2ndAzGap: 201°   atten: -0.85 [+/-1.57]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 30km   maxHorUnc: 46km   azMaxHorUnc: 97°
68%ConfEllipsoid:   semiMajorAxisLength: 57km   majorAxisAzimuth: 276°   majorAxisPlunge: 3°   semiIntermediateAxisLength: 39km   intermediateAxisAzimuth: 185°   intermediateAxisPlunge: 20°   semiMinorAxisLength: 24km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: - [0]    Td: -s [0]    Td*T50Ex: - [0]    To: -s [0]
Closest plate boundaries:
Subduction geometry:    Zone: Alaska-Aleutians: 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?:
 no
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       165km
       165km
       165km
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.1734497072405.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 147°   dip: 49°   rake: 174°
Nodal Plane 2: strike: 242°   dip: 85°   rake: 41°
Quality: azimuthalGap: -1°   stationPolarityCount: 13   misfitWeightCount: 2.9   misfit: 0.01   stationDistributionRatio: 0.29   meanDistP: 54.6   meanDistT: 53.5   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734497072405.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.1734497072405.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 156°   dip: 60°   rake: 176°
Nodal Plane 2: strike: 248°   dip: 87°   rake: 30°
Quality: azimuthalGap: 120°   stationPolarityCount: 13   misfit: 0.16   stationDistributionRatio: 0.65   rmsAngDiffAccPref: 42.49   fracAcc30degPref: 0.35   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734497072405.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734497072405
Event info last updated: 2024.12.18-05:43:00 UTC
Event first association/location: 2024.12.18-04:55:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA