Early-est:     Off East Coast of Kamchatka    2025.08.05-02:16:57.07    q:B      mb:4.8*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754360216794.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754360216794.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754360216794.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* [35]    Mwp: - [0]    Mwpd: - [0]
Region: Off East Coast of Kamchatka
Origin Time: 2025.08.05-02:16:57.07 UTC
Hypocenter: lat: 52.47°  lon: 159.44°  [+/-25km]    depth: 59km  [+/-25km]
Location Quality: qualityCode:  B     stdErr: 0.7s   assocPhases: 64   usedPhases: 38
minDist: 0.7°   maxDist: 154.9°   AzGap: 127°   2ndAzGap: 222°   atten: -1.68 [+/-0.37]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 25km   azMaxHorUnc: 116°
68%ConfEllipsoid:   semiMajorAxisLength: 35km   majorAxisAzimuth: 295°   majorAxisPlunge: 34°   semiIntermediateAxisLength: 19km   intermediateAxisAzimuth: 145°   intermediateAxisPlunge: 52°   semiMinorAxisLength: 16km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [13]    Td: -s [0]    Td*T50Ex: - [0]    To: 2.0s [11]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~110km
   North America / Pacific [subduction zone]: distance: ~430km
   Okhotsk / North America [subduction zone]: distance: ~430km
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 (110km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       59km
       59km
       59km
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.1754360216794.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):
Nodal Plane 1: strike: 149°   dip: 16°   rake: -150°
Nodal Plane 2: strike: 31°   dip: 82°   rake: -76°
Quality: azimuthalGap: -1°   stationPolarityCount: 33   misfitWeightCount: 6.9   misfit: 0.03   stationDistributionRatio: 0.69   meanDistP: 30.9   meanDistT: 31.7   qualityCode: B
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754360216794.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.1754360216794.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 233°   dip: 20°   rake: -73°
Nodal Plane 2: strike: 36°   dip: 71°   rake: -96°
Quality: azimuthalGap: 129°   stationPolarityCount: 33   misfit: 0.16   stationDistributionRatio: 0.77   rmsAngDiffAccPref: 38.66   fracAcc30degPref: 0.47   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754360216794.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754360216794
Event info last updated: 2025.08.05-03:15:02 UTC
Event first association/location: 2025.08.05-02:30:03 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA