Early-est:     Central Mediterranean Sea    2026.04.01-17:11:34.12    q:A      mb:4.7*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1775063494557.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1775063494557.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1775063494557.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* [28]    Mwp: - [0]    Mwpd: - [0]
Region: Central Mediterranean Sea
Origin Time: 2026.04.01-17:11:34.12 UTC
Hypocenter: lat: 35.74°  lon: 22.14°  [+/-4km]    depth: 16km  [+/-6km]
Location Quality: qualityCode:  A     stdErr: 1.1s   assocPhases: 55   usedPhases: 26
minDist: 3.0°   maxDist: 69.1°   AzGap: 183°   2ndAzGap: 197°   atten: -1.63 [+/-0.37]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 3km   maxHorUnc: 4km   azMaxHorUnc: 0°
68%ConfEllipsoid:   semiMajorAxisLength: 6km   majorAxisAzimuth: 11°   majorAxisPlunge: 71°   semiIntermediateAxisLength: 5km   intermediateAxisAzimuth: 178°   intermediateAxisPlunge: 18°   semiMinorAxisLength: 3km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.6 [26]    Td: 2.9Xs [1]    Td*T50Ex: - [0]    To: 44.9s [22]
Closest plate boundaries:
   Aegean Sea / Africa [subduction zone]: distance: ~20km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (20km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       16km
       16km
       16km
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.1775063494557.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 52°   dip: 67°   rake: -13°
Nodal Plane 2: strike: 147°   dip: 78°   rake: -157°
Quality: azimuthalGap: -1°   stationPolarityCount: 27   misfitWeightCount: 6.2   misfit: 0.18   stationDistributionRatio: 0.40   meanDistP: 48.7   meanDistT: 54.0   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1775063494557.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.1775063494557.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: 183°   stationPolarityCount: 27   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1775063494557.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1775063494557
Event info last updated: 2026.04.01-18:10:00 UTC
Event first association/location: 2026.04.01-17:18:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA