Early-est:     Off East Coast of Kamchatka    2025.08.01-07:44:15.05    q:A      mb:5.2*    Mwp:-    Mwpd:-    Td*T50Ex:0.7     fmamp_polarity:./hypo.1754034259188.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754034259188.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754034259188.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: 5.2* [55]    Mwp: 5.2X [2]    Mwpd: 5.5Xinv [1]
Region: Off East Coast of Kamchatka
Origin Time: 2025.08.01-07:44:15.05 UTC
Hypocenter: lat: 51.91°  lon: 160.27°  [+/-20km]    depth: 15km  [+/-14km]
Location Quality: qualityCode:  A     stdErr: 1.5s   assocPhases: 91   usedPhases: 57
minDist: 1.5°   maxDist: 145.7°   AzGap: 133°   2ndAzGap: 141°   atten: -1.22 [+/-0.34]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 11km   maxHorUnc: 20km   azMaxHorUnc: 160°
68%ConfEllipsoid:   semiMajorAxisLength: 25km   majorAxisAzimuth: 160°   majorAxisPlunge: 2°   semiIntermediateAxisLength: 14km   intermediateAxisAzimuth: 64°   intermediateAxisPlunge: 71°   semiMinorAxisLength: 14km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [46]    Td: 1.6s [9]    Td*T50Ex: 0.7 [9]    To: 29.7s [44]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~50km
   North America / Pacific [subduction zone]: distance: ~440km
   Okhotsk / North America [subduction zone]: distance: ~440km
Subduction geometry:    Zone: Kamchatka/Kurils/Japan: 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 (50km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   0.7
   0.7
   0.7
Td*To:
     47.5
     47.5
     47.5
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.1754034259188.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 84°   dip: 53°   rake: -158°
Nodal Plane 2: strike: 340°   dip: 72°   rake: -39°
Quality: azimuthalGap: -1°   stationPolarityCount: 46   misfitWeightCount: 7.1   misfit: 0.17   stationDistributionRatio: 0.45   meanDistP: 49.7   meanDistT: 49.7   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754034259188.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.1754034259188.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (No solution available)
Nodal Plane 1: strike: 999°   dip: 99°   rake: 999°
Nodal Plane 2: strike: 324°   dip: 13°   rake: 135°
Quality: azimuthalGap: 161°   stationPolarityCount: 46   misfit: 0.99   stationDistributionRatio: 0.72   rmsAngDiffAccPref: 37.80   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754034259188.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754034259188
Event info last updated: 2025.08.01-08:43:02 UTC
Event first association/location: 2025.08.01-07:50:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA