MANUAL Location - Area: Mar Ligure , magnitude (ML): 1.3
2023-03-25 09:04:20 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2023-03-27 07:33:27

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Earthquake info - Manual location
Event - ID :230325090404
Magnitude (ML) :1.3 +/- 0.2
Origin Time :2023-03-25 09:04:20.187 (UTC)
Location : Latitude: 44.024 N, Longitude: 8.648 E
Area :Mar Ligure
Depth (km) :1.12
Distances (km) : 27.6 --- Noli
29.2 --- Finale Ligure
29.2 --- Spotorno
29.9 --- Bergeggi
31.5 --- Borgio Verezzi
32.2 --- Vezzi Portio
32.3 --- Vado Ligure
32.4 --- Pietra Ligure
33.2 --- Loano
34.0 --- Orco Feglino
34.0 --- Borghetto Santo Spirito
34.3 --- Ceriale
34.4 --- Savona
34.7 --- Calice Ligure
34.8 --- Tovo San Giacomo
34.9 --- Albenga
35.8 --- Albisola Marina
35.9 --- Quiliano
36.3 --- Giustenice
36.3 --- Albisola Superiore

Quality location estimate: Erh: 2.2 km, Erz: 2.4 km, Nf: 30, Gap: 193 °, Rms: 0.26


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.
CANOGU2023-03-25 09:04:28.0600.0180-0.001.432023-03-25 09:04:33.4200.0400-0.321.0938.7
QLNOGU2023-03-25 09:04:28.4000.0180-0.570.452023-03-25 09:04:34.2770.3157-1.120.1341.2
ROROGU2023-03-25 09:04:29.0200.0231-0.291.142023-03-25 09:04:35.7800.2957-0.141.1947.5
RNCAGU2023-03-25 09:04:30.7300.05520.271.122023-03-25 09:04:38.8830.04001.030.0755.3
TBG01GU2023-03-25 09:04:30.7280.0602-0.211.322023-03-25 09:04:39.8870.13031.290.0657.4
PCPGU2023-03-25 09:04:30.9600.0261-0.261.232023-03-25 09:04:39.3030.04000.071.3958.2
IMIGU2023-03-25 09:04:31.5580.0200-0.221.302023-03-25 09:04:40.2650.0400-0.001.4161.7
MGROGU2023-03-25 09:04:32.7270.0200-0.091.442023-03-25 09:04:42.4900.04000.311.0167.2
GBOSGU2023-03-25 09:04:32.7600.03210.051.442023-03-25 09:04:41.8890.04000.271.1068.9
MSSAIV2023-03-25 09:04:33.5290.0200-0.600.472023-03-25 09:04:42.4390.0400-1.820.0176.6
GORRGU2023-03-25 09:04:35.0700.04020.141.362023-03-25 09:04:45.5780.16040.121.2182.7
SAOFFR2023-03-25 09:04:36.4320.02000.400.812023-03-25 09:04:47.0950.0400-0.500.7687.6
TURFFR2023-03-25 09:04:38.5290.06020.161.292023-03-25 09:04:51.3320.1303-0.141.18100.6
ENRGU2023-03-25 09:04:38.4330.02000.340.962023-03-25 09:04:50.9180.04000.151.18100.8
STVGU2023-03-25 09:04:39.4450.10040.121.322023-03-25 09:04:52.6330.1604-0.181.12108.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
CANO GUHH1.411.95e-138.7302
QLNO GUHH1.027.06e-241.2324
RORO GUHH1.259.08e-247.5282
RNCA GUHH1.094.62e-255.326
TBG01GUEH1.772.01e-157.441
PCP GUHH1.461.05e-158.2352
IMI GUHH1.277.36e-261.7259
MGRO GUHH1.609.84e-267.2272
GBOS GUHH1.382.84e-268.9291
GORR GUHH1.363.56e-282.738
TURF FRHH1.201.55e-2100.6267
ENR GUHH1.212.19e-2100.8284
STV GUHH1.331.18e-2108.3284


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.
(°)
CANO GUHHZ8.5218e-62.0320e-69.5109e-72.5242e-71.2968e-71.7747e-53.7708e-61.9799e-73.7275e-838.7302
CANO GUHHN1.4843e-51.9891e-61.2406e-62.9707e-71.3064e-72.0701e-54.6281e-62.4011e-74.8196e-838.7302
CANO GUHHE8.4221e-62.3517e-61.6665e-66.3840e-72.6741e-72.9820e-51.2183e-53.9777e-75.5130e-838.7302
QLNO GUHHZ4.3530e-65.2708e-74.2703e-71.1543e-77.3628e-81.0294e-52.9255e-61.1752e-71.5930e-841.2324
QLNO GUHHN7.7874e-61.4210e-66.3555e-72.0402e-78.9593e-82.1383e-52.0492e-61.3706e-72.8139e-841.2324
QLNO GUHHE8.7113e-69.9163e-76.6957e-72.5055e-79.2508e-81.4838e-52.1051e-61.3746e-72.3923e-841.2324
RORO GUHHZ3.8717e-67.4156e-74.9950e-71.8038e-79.0495e-81.1944e-52.1944e-61.3422e-71.8975e-847.5282
RORO GUHHN6.4350e-61.2177e-66.5546e-72.1286e-71.0323e-72.6184e-53.4138e-61.6346e-72.7441e-847.5282
RORO GUHHE7.9981e-61.2527e-67.1166e-72.6056e-71.4093e-71.9722e-53.5984e-62.1998e-73.5593e-847.5282
RNCA GUHHZ5.9328e-66.2808e-72.7406e-78.9511e-84.0545e-89.6776e-61.2104e-66.3649e-81.2719e-855.326
RNCA GUHHN3.8020e-64.8864e-73.7409e-71.5149e-77.2634e-87.3210e-62.4774e-61.0290e-71.4775e-855.326
RNCA GUHHE8.5619e-69.4698e-74.3726e-71.4761e-76.5156e-88.8922e-61.6809e-69.3750e-81.8436e-855.326
TBG01GUEHZ1.3304e-51.7190e-61.1471e-64.7434e-72.3686e-72.6474e-56.1705e-63.8168e-73.8428e-857.441
TBG01GUEHN9.2968e-62.2184e-61.7925e-66.6355e-72.9642e-72.7170e-57.5117e-65.1692e-75.2629e-857.441
TBG01GUEHE1.5546e-51.9951e-61.4605e-65.8222e-72.5839e-72.9437e-57.2004e-63.9854e-74.5609e-857.441
PCP GUHHZ2.8616e-65.7812e-74.9991e-71.3336e-76.6337e-86.9407e-63.8687e-61.0162e-71.4878e-858.2352
PCP GUHHN4.0510e-67.0981e-74.1389e-71.6780e-75.8026e-81.3790e-52.0827e-68.6936e-81.6270e-858.2352
PCP GUHHE3.6674e-61.1895e-68.8737e-72.7366e-71.2395e-71.1450e-55.3317e-61.8216e-73.3744e-858.2352
IMI GUHHZ2.0966e-63.2065e-73.2144e-71.7101e-78.1821e-84.6432e-62.0279e-61.0165e-79.0769e-961.7259
IMI GUHHN3.6452e-66.6824e-76.1167e-72.2518e-71.2264e-77.1286e-65.5985e-62.1620e-72.2893e-861.7259
IMI GUHHE2.6693e-63.7375e-73.3432e-71.1669e-76.6819e-85.8636e-62.0835e-68.6247e-89.2826e-961.7259
MGRO GUHHZ1.9912e-64.7191e-74.5318e-73.6960e-71.1983e-73.4938e-62.1241e-61.4272e-71.6138e-867.2272
MGRO GUHHN2.1996e-66.7474e-76.9738e-74.1361e-72.0982e-76.9693e-64.2938e-63.4954e-73.4898e-867.2272
MGRO GUHHE2.7706e-67.0170e-75.5950e-72.8528e-71.0785e-78.7446e-63.5672e-61.2926e-71.9418e-867.2272
GBOS GUHHZ2.4674e-64.6945e-72.5888e-71.1567e-75.8678e-81.1421e-57.8670e-77.8045e-81.1552e-868.9291
GBOS GUHHN2.2029e-63.6861e-72.3947e-71.3346e-75.6382e-81.0074e-51.0525e-67.1775e-89.3843e-968.9291
GBOS GUHHE1.9642e-63.4206e-72.0375e-78.5986e-83.7434e-85.8050e-61.0250e-65.0552e-87.0782e-968.9291
MSSA IVHHZ7.8209e-67.9389e-72.4106e-76.9957e-84.7861e-81.3618e-51.0248e-68.5650e-81.5532e-876.665
MSSA IVHHN1.9003e-52.4401e-69.9119e-72.1530e-71.3811e-77.9365e-52.5691e-62.5078e-75.3416e-876.665
MSSA IVHHE2.8702e-54.2699e-61.5077e-63.3807e-72.0701e-71.5879e-43.9197e-63.7853e-78.9843e-876.665
GORR GUHHZ2.2196e-65.1148e-73.0427e-78.4340e-84.4932e-88.4625e-61.6179e-66.8745e-81.3084e-882.738
GORR GUHHN2.3668e-64.7539e-73.8944e-71.4801e-75.5438e-87.1440e-62.0800e-69.3409e-81.0592e-882.738
GORR GUHHE2.9231e-65.4354e-73.7544e-71.0954e-74.0745e-81.0520e-51.8358e-66.1004e-81.1696e-882.738
TURF FRHHZ6.4930e-71.0678e-79.0181e-85.3022e-83.0225e-81.7066e-64.1798e-74.5250e-84.7266e-9100.6267
TURF FRHHN9.0288e-71.8174e-71.3863e-75.4147e-82.9830e-81.9036e-68.6373e-73.6902e-84.5907e-9100.6267
TURF FRHHE6.9376e-71.6471e-71.3527e-75.8422e-83.4751e-81.9734e-68.6277e-74.3261e-84.9917e-9100.6267
ENR GUHHZ1.0257e-61.8692e-71.1524e-73.7937e-81.9491e-82.7226e-65.1280e-72.5791e-84.6816e-9100.8284
ENR GUHHN3.5390e-64.0812e-72.1809e-77.9743e-83.7529e-89.1432e-69.2664e-75.5467e-89.7320e-9100.8284
ENR GUHHE3.4517e-63.3713e-71.3227e-75.4772e-82.6342e-86.7878e-64.4814e-73.9334e-87.7705e-9100.8284
STV GUHHZ9.7538e-71.5423e-71.0745e-74.2532e-82.1174e-82.3231e-65.9922e-73.5889e-84.1028e-9108.3284
STV GUHHN6.3634e-71.4852e-71.1746e-75.2922e-82.4023e-81.6081e-65.3328e-73.8574e-83.9843e-9108.3284
STV GUHHE9.3854e-71.7240e-71.1220e-73.3424e-81.8344e-82.6876e-64.8207e-72.8016e-83.7608e-9108.3284
*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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