MANUAL Location - Area: Riviera di levante , magnitude (ML): 0.9
2025-05-05 04:34:10 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-05-08 06:30:37

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Earthquake info - Manual location
Event - ID :250505043349
Magnitude (ML) :0.9 +/- 0.2
Origin Time :2025-05-05 04:34:10.563 (UTC)
Location : Latitude: 44.313 N, Longitude: 9.209 E
Area :Riviera di levante
Depth (km) :15.99
Distances (km) : 0.8 --- Portofino
2.6 --- Santa Margherita Ligure
4.6 --- Rapallo
5.5 --- Zoagli
6.2 --- Camogli
7.9 --- Recco
8.5 --- Avegno
8.7 --- Leivi
9.0 --- Chiavari
9.4 --- Coreglia Ligure
10.6 --- San Colombano Certenoli
10.7 --- Lavagna
10.8 --- Sori
11.1 --- Cicagna
11.6 --- Pieve Ligure
11.6 --- Carasco
11.6 --- Cogorno
11.7 --- Tribogna
11.7 --- Uscio
11.9 --- Orero

Quality location estimate: Erh: 0.7 km, Erz: 1.7 km, Nf: 22, Gap: 203 °, Rms: 0.13


Manual location results
Station Net P arrival time P pick
err
P pick
weight
P res Nll
weight
S arrival time S pick
err
S pick
weight
S res Nll
weight
Dist.
GENLGU2025-05-05 04:34:14.9690.1004-0.210.612025-05-05 04:34:18.5990.04000.190.9927.0
MSSAIV2025-05-05 04:34:15.9400.01800.061.572025-05-05 04:34:19.5560.1002-0.290.4529.8
TGLIT2025-05-05 04:34:15.6700.0200-0.370.182025-05-05 04:34:18.9940.0400-0.820.0030.1
GNVIT2025-05-05 04:34:15.6920.0200-0.031.602025-05-05 04:34:19.3400.04000.011.5430.5
RNCAGU2025-05-05 04:34:15.8800.0180-0.031.602025-05-05 04:34:19.6150.1073-0.011.3231.5
GORRGU2025-05-05 04:34:17.1340.02000.021.662025-05-05 04:34:21.9190.04000.071.4137.3
VRLIT2025-05-05 04:34:17.6960.02000.210.872025-05-05 04:34:22.6390.0400-0.001.3838.4
PCPGU2025-05-05 04:34:20.9340.02000.300.582025-05-05 04:34:28.4270.04000.800.1060.9


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
GENL GUEH1.142.09e-127.0299
MSSA IVHH0.493.94e-229.889
TGL ITHN0.899.52e-230.1352
GNV ITHG1.001.21e-130.5301
RNCA GUHH0.919.17e-231.5311
GORR GUHH0.714.24e-237.311
PCP GUHH0.611.35e-260.9296


Results of PGA, PGV, IH, spectral amplitudes (SA) values calculation
Station Net Channel PGA
(g)
PGV
(m/s)
IH 0*
(m)
IH 1*
(m)
IH 2*
(m)
Sa(T=0.10)
(g)
Sa(T=0.30)
(g)
Sa(T=1.00)
(g)
Sa(T=3.00)
(g)
Dist.
(km)
Azim.
(°)
GENL GUEHZ2.5348e-53.1441e-61.1128e-64.0141e-72.1413e-73.3906e-54.2598e-63.1495e-76.4211e-827.0299
GENL GUEHN1.9140e-52.9657e-61.8922e-65.2441e-72.7912e-74.3272e-58.6146e-64.9089e-77.4376e-827.0299
GENL GUEHE2.1548e-52.6176e-61.4642e-63.8032e-72.4562e-74.1536e-57.3397e-63.7977e-76.7265e-827.0299
MSSA IVHHZ2.3444e-64.5320e-72.7369e-71.7610e-78.1258e-86.7606e-61.1433e-61.0768e-71.1738e-829.889
MSSA IVHHN2.1333e-65.7990e-73.6492e-71.2184e-78.6307e-85.9213e-61.8560e-61.1071e-71.4341e-829.889
MSSA IVHHE2.0929e-64.0644e-73.0757e-71.8037e-79.0649e-84.1569e-61.2319e-61.1809e-71.6315e-829.889
TGL ITHNZ5.8177e-67.2085e-75.1395e-72.8670e-71.5137e-77.5641e-63.3798e-62.0595e-72.0986e-830.1352
TGL ITHNN5.7798e-69.2179e-77.3370e-73.4287e-71.7012e-71.4942e-54.6801e-61.9831e-72.4934e-830.1352
TGL ITHNE5.6545e-61.1337e-69.4114e-74.0350e-71.8917e-71.9270e-54.3986e-62.6121e-72.9685e-830.1352
GNV ITHGZ8.0966e-69.3835e-75.9471e-73.9450e-72.6502e-71.4357e-52.7550e-63.9567e-72.7680e-830.5301
GNV ITHGN7.0387e-61.4239e-69.9489e-75.4951e-72.9719e-71.5818e-55.6751e-63.6893e-74.0156e-830.5301
GNV ITHGE8.7806e-61.4900e-61.1332e-64.5705e-72.8501e-72.9098e-54.0335e-63.4369e-74.0518e-830.5301
RNCA GUHHZ7.4879e-68.8500e-75.8327e-71.7898e-79.9987e-81.1530e-53.3129e-61.6670e-71.8544e-831.5311
RNCA GUHHN5.2637e-61.2948e-68.1082e-73.1250e-71.4986e-71.1819e-54.2958e-61.7546e-72.9267e-831.5311
RNCA GUHHE1.0326e-51.3423e-68.6631e-72.5941e-71.4421e-71.9714e-53.5957e-62.1778e-73.5364e-831.5311
GORR GUHHZ3.3153e-65.4973e-72.8246e-79.3593e-85.3135e-87.6153e-61.3653e-68.0896e-81.6237e-837.311
GORR GUHHN3.4039e-63.8925e-73.2316e-71.5647e-71.3468e-79.2775e-61.7690e-62.4151e-72.5324e-837.311
GORR GUHHE3.5889e-65.3565e-74.1910e-71.5596e-71.1866e-77.8739e-62.4449e-62.0746e-74.5064e-837.311
PCP GUHHZ6.7399e-71.2637e-79.8739e-84.4155e-83.0651e-81.3615e-64.2778e-74.6608e-84.8529e-960.9296
PCP GUHHN8.6625e-71.8325e-71.2784e-75.5961e-83.3182e-82.7561e-66.7695e-75.2268e-85.0372e-960.9296
PCP GUHHE1.0442e-61.5072e-78.7369e-84.0408e-83.6317e-82.9790e-65.5499e-74.8836e-85.5902e-960.9296
*IH (Housner Intensity) calculated on the velocity spectrum (SV) between 0.1 and 0.5 s (IH0), 0.1 and 1.0 s (IH1), 0.1 and 1.5 s (IH2)

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