Early-est:     Off East Coast of Kamchatka    2025.08.06-15:13:41.94    q:C      mb:4.8*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754493221910.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754493221910.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754493221910.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* [19]    Mwp: - [0]    Mwpd: - [0]
Region: Off East Coast of Kamchatka
Origin Time: 2025.08.06-15:13:41.94 UTC
Hypocenter: lat: 51.77°  lon: 160.64°  [+/-15km]    depth: 15km  [+/-14km]
Location Quality: qualityCode:  C     stdErr: 1.2s   assocPhases: 39   usedPhases: 20
minDist: 1.7°   maxDist: 78.7°   AzGap: 145°   2ndAzGap: 168°   atten: -2.55 [+/-0.48]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 15km   azMaxHorUnc: 160°
68%ConfEllipsoid:   semiMajorAxisLength: 19km   majorAxisAzimuth: 340°   majorAxisPlunge: 3°   semiIntermediateAxisLength: 14km   intermediateAxisAzimuth: 250°   intermediateAxisPlunge: 9°   semiMinorAxisLength: 14km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.3 [7]    Td: 1.3Xs [3]    Td*T50Ex: - [0]    To: 1.6s [6]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~30km
   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 (30km)
 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.1754493221910.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 53°   dip: 47°   rake: 130°
Nodal Plane 2: strike: 183°   dip: 55°   rake: 55°
Quality: azimuthalGap: -1°   stationPolarityCount: 21   misfitWeightCount: 6.2   misfit: 0.08   stationDistributionRatio: 0.60   meanDistP: 50.3   meanDistT: 40.9   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754493221910.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.1754493221910.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 35°   dip: 54°   rake: 100°
Nodal Plane 2: strike: 198°   dip: 37°   rake: 77°
Quality: azimuthalGap: 144°   stationPolarityCount: 21   misfit: 0.30   stationDistributionRatio: 0.65   rmsAngDiffAccPref: 41.87   fracAcc30degPref: 0.38   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754493221910.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754493221910
Event info last updated: 2025.08.06-16:12:00 UTC
Event first association/location: 2025.08.06-15:51:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA