Early-est:     Near East Coast of Kamchatka    2025.08.01-09:18:03.52    q:B      mb:4.7*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754039882859.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754039882859.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754039882859.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: 4.7* [36]    Mwp: - [0]    Mwpd: - [0]
Region: Near East Coast of Kamchatka
Origin Time: 2025.08.01-09:18:03.52 UTC
Hypocenter: lat: 51.01°  lon: 158.13°  [+/-13km]    depth: 15km  [+/-13km]
Location Quality: qualityCode:  B     stdErr: 1.9s   assocPhases: 76   usedPhases: 44
minDist: 2.0°   maxDist: 149.1°   AzGap: 100°   2ndAzGap: 109°   atten: -0.70 [+/-0.26]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 11km   maxHorUnc: 13km   azMaxHorUnc: 4°
68%ConfEllipsoid:   semiMajorAxisLength: 16km   majorAxisAzimuth: 5°   majorAxisPlunge: 4°   semiIntermediateAxisLength: 14km   intermediateAxisAzimuth: 95°   intermediateAxisPlunge: 10°   semiMinorAxisLength: 13km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [18]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.7s [17]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~120km
   North America / Pacific [subduction zone]: distance: ~610km
   Okhotsk / North America [subduction zone]: distance: ~610km
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 (120km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
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.1754039882859.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 185°   dip: 32°   rake: -123°
Nodal Plane 2: strike: 42°   dip: 64°   rake: -72°
Quality: azimuthalGap: -1°   stationPolarityCount: 36   misfitWeightCount: 5.1   misfit: 0.09   stationDistributionRatio: 0.40   meanDistP: 46.5   meanDistT: 50.9   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754039882859.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.1754039882859.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 171°   dip: 18°   rake: -122°
Nodal Plane 2: strike: 24°   dip: 75°   rake: -80°
Quality: azimuthalGap: 139°   stationPolarityCount: 36   misfit: 0.22   stationDistributionRatio: 0.71   rmsAngDiffAccPref: 33.29   fracAcc30degPref: 0.71   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754039882859.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754039882859
Event info last updated: 2025.08.01-10:17:01 UTC
Event first association/location: 2025.08.01-09:24:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA