Early-est:     Nicaragua    2025.08.01-18:32:32.37    q:C      mb:4.4*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754073155108.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754073155108.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754073155108.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: 4.4* [5]    Mwp: 4.7X [1]    Mwpd: - [0]
Region: Nicaragua
Origin Time: 2025.08.01-18:32:32.37 UTC
Hypocenter: lat: 12.59°  lon: -86.06°  [+/-13km]    depth: 162km  [+/-22km]
Location Quality: qualityCode:  C     stdErr: 2.0s   assocPhases: 22   usedPhases: 12
minDist: 0.4°   maxDist: 151.9°   AzGap: 100°   2ndAzGap: 133°   atten: -9.90 [+/-0.00]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 11km   maxHorUnc: 13km   azMaxHorUnc: 65°
68%ConfEllipsoid:   semiMajorAxisLength: 23km   majorAxisAzimuth: 40°   majorAxisPlunge: 68°   semiIntermediateAxisLength: 15km   intermediateAxisAzimuth: 271°   intermediateAxisPlunge: 14°   semiMinorAxisLength: 13km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: - [0]    Td: -s [0]    Td*T50Ex: - [0]    To: -s [0]
Closest plate boundaries:
   Caribbean / Cocos [subduction zone]: distance: ~230km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (230km)
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       162km
       162km
       162km
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.1754073155108.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 264°   dip: 48°   rake: 119°
Nodal Plane 2: strike: 44°   dip: 49°   rake: 61°
Quality: azimuthalGap: -1°   stationPolarityCount: 8   misfitWeightCount: 3.5   misfit: 0.00   stationDistributionRatio: 0.34   meanDistP: 50.5   meanDistT: 50.5   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754073155108.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.1754073155108.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: 155°   stationPolarityCount: 8   misfit: 0.99   stationDistributionRatio: 0.69   rmsAngDiffAccPref: 25.72   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754073155108.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754073155108
Event info last updated: 2025.08.01-19:31:01 UTC
Event first association/location: 2025.08.01-19:17:06 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA