MANUAL Location - Area: Costa toscana settentrionale , magnitude (ML): 2.2
2025-02-15 04:20:50 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-02-15 12:38:23

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Earthquake info - Manual location
Event - ID :250215042024
Magnitude (ML) :2.2 +/- 0.2
Origin Time :2025-02-15 04:20:50.624 (UTC)
Location : Latitude: 44.042 N, Longitude: 10.003 E
Area :Costa toscana settentrionale
Depth (km) :6.01
Distances (km) : 4.4 --- Ameglia
5.1 --- Carrara
6.3 --- Ortonovo
6.6 --- Castelnuovo Magra
8.2 --- Lerici
8.5 --- Sarzana
9.7 --- Massa
10.6 --- Fosdinovo
11.2 --- Arcola
13.3 --- Portovenere
14.1 --- Montignoso
14.6 --- Vezzano Ligure
15.0 --- Santo Stefano di Magra
16.1 --- Forte dei Marmi
16.3 --- La Spezia
17.5 --- Follo
18.5 --- Bolano
18.7 --- Seravezza
19.1 --- Podenzana
19.3 --- Aulla

Quality location estimate: Erh: 0.8 km, Erz: 0.6 km, Nf: 48, Gap: 73 °, Rms: 0.29


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.
PLMAIV2025-02-15 04:20:53.8900.00900.351.402025-02-15 04:20:55.6210.0531-0.041.4113.4
EQUIGU2025-02-15 04:20:54.8000.01200.331.442025-02-15 04:20:57.1900.0722-0.061.3319.3
AULIT2025-02-15 04:20:54.7880.02000.421.112025-02-15 04:20:57.2540.04000.181.4219.6
FIVIGU2025-02-15 04:20:55.8150.02000.351.402025-02-15 04:20:59.0010.04000.041.4924.9
CMEIT2025-02-15 04:20:55.9210.0200-0.011.502025-02-15 04:20:59.5000.0400-0.370.5726.5
VLCMN2025-02-15 04:20:57.2120.02000.510.682025-02-15 04:21:01.2590.04000.051.4833.8
SARMGU2025-02-15 04:20:57.5900.02000.241.432025-02-15 04:21:01.9450.1183-0.410.5836.1
CARIT2025-02-15 04:20:57.8540.02000.231.432025-02-15 04:21:02.3880.0400-0.360.6138.7
CARDGU2025-02-15 04:20:57.6200.02110.221.422025-02-15 04:21:02.6900.12430.241.4138.8
MAIMGU2025-02-15 04:20:58.4500.02210.051.502025-02-15 04:21:03.1990.1324-1.000.1742.1
BDIIV2025-02-15 04:20:59.4000.02510.361.352025-02-15 04:21:05.2200.1514-0.101.1548.0
VRLIT2025-02-15 04:20:59.6220.0200-0.061.322025-02-15 04:21:06.2200.0400-0.181.0049.2
MSSAIV2025-02-15 04:20:59.6300.02610.041.492025-02-15 04:21:05.5090.1554-0.810.2849.8
GRAMGU2025-02-15 04:21:00.1200.02710.580.512025-02-15 04:21:06.1930.16150.450.9750.6
ERBMIV2025-02-15 04:21:00.8900.02810.221.472025-02-15 04:21:07.8970.1002-0.320.7553.6
PIIIV2025-02-15 04:21:00.6500.0331-0.001.442025-02-15 04:21:07.4820.1735-0.640.4055.2
GSCLGU2025-02-15 04:21:01.5500.03110.111.492025-02-15 04:21:08.5750.1875-0.900.2558.2
BVTIT2025-02-15 04:21:01.2390.0200-0.081.232025-02-15 04:21:08.9350.0400-0.200.9658.5
POPMGU2025-02-15 04:21:01.4800.03110.431.092025-02-15 04:21:09.2090.21860.321.1460.6
GORRGU2025-02-15 04:21:05.4200.04320.161.472025-02-15 04:21:16.2200.1002-0.330.7984.7
RNCAGU2025-02-15 04:21:07.6240.04920.550.712025-02-15 04:21:18.8890.04000.291.1896.6
OSSCIV2025-02-15 04:21:10.4080.0200-0.490.522025-02-15 04:21:24.3330.0400-1.350.09115.4
PCPGU2025-02-15 04:21:13.0080.10041.150.002025-02-15 04:21:27.2390.04000.590.68128.8
MORSIFR2025-02-15 04:21:11.9120.0653-0.640.402025-02-15 04:21:26.9270.5009-1.680.00131.8


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
PLMA IVHH2.381.27e+113.4274
EQUI GUHH1.902.27e+019.341
FIVI GUHN2.323.70e+024.924
CME ITHN2.192.41e+026.5112
VLC MNHH2.181.06e+033.867
SARM GUEH2.452.98e+036.163
CAR ITHN2.089.20e-138.7307
CARD GUHH2.713.84e+038.893
MAIM GUHH1.945.00e-142.1110
BDI IVHH2.026.56e-148.087
GRAM GUHH2.121.08e+050.66
ERBM IVEH1.963.63e-153.638
PII IVHH1.943.21e-155.2130
GSCL GUHH2.449.13e-158.253
BVT ITHN2.306.57e-158.5339
POPM GUHH2.138.44e-160.689
GORR GUHH2.172.20e-184.7318
RNCA GUHH2.282.09e-196.6300
OSSC IVHH1.976.64e-2115.4120


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.
(°)
PLMA IVHHZ3.3854e-44.6282e-51.7238e-55.3736e-62.8744e-65.3597e-41.0511e-44.6774e-69.8608e-713.4274
PLMA IVHHN7.7248e-41.8311e-48.8196e-52.8925e-51.7736e-51.7011e-34.2700e-42.8909e-54.4663e-613.4274
PLMA IVHHE7.7878e-46.3078e-52.7079e-59.1731e-65.2931e-65.0346e-41.5031e-48.0019e-61.5284e-613.4274
EQUI GUHHZ2.1040e-42.6313e-51.5580e-57.4540e-63.6225e-63.6055e-49.0280e-55.6371e-67.4977e-719.341
EQUI GUHHN2.0385e-42.4529e-51.3711e-57.2134e-63.7127e-63.3830e-49.0539e-55.3770e-65.8872e-719.341
EQUI GUHHE1.7028e-42.9917e-51.6415e-55.9139e-63.0490e-62.9491e-41.0177e-44.6015e-68.0197e-719.341
FIVI GUHNZ2.3069e-43.0583e-51.5650e-53.5769e-62.0912e-65.7793e-45.6716e-53.4762e-66.7242e-724.924
FIVI GUHNN3.6620e-45.7534e-52.9605e-58.0722e-64.1425e-67.0516e-41.6776e-46.2252e-61.2289e-624.924
FIVI GUHNE4.7256e-46.7341e-52.8335e-51.0429e-55.8620e-61.1113e-31.1916e-49.6799e-61.8127e-624.924
CME ITHNZ6.9310e-51.1793e-58.5724e-62.2348e-61.1281e-61.8957e-45.1840e-51.5785e-62.6686e-726.5112
CME ITHNN1.0549e-42.6517e-51.7831e-54.6655e-62.1159e-63.0932e-41.1810e-43.3257e-66.5368e-726.5112
CME ITHNE1.5561e-43.0709e-52.0289e-57.4295e-63.5366e-62.4116e-41.1842e-45.2447e-68.3221e-726.5112
VLC MNHHZ5.4910e-59.9092e-65.4951e-61.8761e-68.2034e-71.6203e-42.8567e-51.1673e-62.5374e-733.867
VLC MNHHN9.3168e-51.7424e-58.5633e-62.2601e-61.3407e-62.7820e-43.7031e-52.1212e-63.8656e-733.867
VLC MNHHE1.0755e-41.4980e-58.4211e-63.1233e-61.8303e-62.9726e-43.2951e-52.6660e-63.8563e-733.867
SARM GUEHZ9.7958e-52.0963e-51.2099e-54.4401e-61.9764e-62.2582e-44.1083e-52.8576e-65.1091e-736.163
SARM GUEHN1.8260e-43.5046e-52.3818e-57.2374e-63.9013e-64.8141e-41.1234e-46.0651e-61.0246e-636.163
SARM GUEHE8.9458e-52.0508e-51.2473e-55.1100e-62.4134e-62.7027e-45.5390e-53.4328e-64.4293e-736.163
CAR ITHNZ4.5929e-58.7127e-66.0820e-62.5992e-61.0815e-69.9054e-54.7269e-51.5233e-62.3033e-738.7307
CAR ITHNN8.2086e-51.1793e-59.8302e-63.4346e-61.3974e-61.8601e-44.8275e-52.1923e-63.4996e-738.7307
CAR ITHNE8.8184e-59.5958e-66.0397e-61.5421e-66.7887e-71.6575e-43.8675e-51.0285e-62.2299e-738.7307
CARD GUHHZ1.3180e-41.6638e-55.9053e-61.7683e-69.2119e-72.9681e-42.4022e-51.6215e-62.8844e-738.893
CARD GUHHN2.7970e-45.1094e-53.1443e-57.1545e-64.1839e-69.7137e-41.0868e-46.9572e-61.3402e-638.893
CARD GUHHE3.0372e-45.4097e-53.2096e-57.3894e-64.2116e-66.6390e-41.0564e-47.0335e-61.3860e-638.893
MAIM GUHHZ2.2113e-53.7542e-62.3238e-61.0779e-64.9086e-76.4527e-51.3511e-56.0192e-77.9652e-842.1110
MAIM GUHHN2.5346e-54.6719e-63.5959e-61.3176e-65.7479e-78.8562e-51.7105e-57.1459e-71.0904e-742.1110
MAIM GUHHE2.8356e-56.0609e-63.8774e-62.1993e-61.0771e-68.2374e-52.0029e-51.3413e-61.6849e-742.1110
BDI IVHHZ4.4778e-57.7879e-64.4397e-61.2105e-67.1622e-71.0760e-42.2942e-51.0396e-61.6760e-748.087
BDI IVHHN6.1024e-58.0859e-64.8990e-61.7949e-66.9576e-71.7532e-42.7536e-51.0270e-61.8638e-748.087
BDI IVHHE5.0684e-59.3039e-66.6006e-62.2325e-69.9207e-71.5582e-44.4635e-51.4161e-62.4741e-748.087
MSSA IVHHZ1.7479e-52.1798e-61.4615e-67.1433e-73.2409e-74.3394e-57.2749e-63.5363e-75.9453e-849.8308
MSSA IVHHN2.3834e-53.7032e-62.4356e-69.0143e-73.6297e-75.1886e-51.1509e-54.8072e-78.7920e-849.8308
MSSA IVHHE1.4995e-52.3834e-61.9347e-67.5296e-72.8595e-73.2657e-59.4466e-64.4266e-76.7783e-849.8308
GRAM GUHHZ3.6414e-55.5265e-64.2344e-61.4342e-66.6017e-79.5559e-51.7961e-59.5859e-71.3556e-750.66
GRAM GUHHN5.3806e-51.3737e-51.1486e-54.1953e-61.6849e-61.5249e-45.9375e-52.2529e-63.4337e-750.66
GRAM GUHHE3.5675e-58.5653e-69.6258e-63.0698e-61.1636e-61.1097e-44.4478e-51.6405e-62.4789e-750.66
ERBM IVEHZ1.4996e-52.7649e-62.0192e-67.9425e-74.2156e-75.9466e-58.7452e-65.5666e-77.4404e-853.638
ERBM IVEHN2.3379e-55.0565e-63.2691e-61.2164e-65.4290e-78.8466e-51.3160e-58.0217e-71.2863e-753.638
ERBM IVEHE2.2955e-54.9345e-62.8138e-68.0632e-73.9748e-76.7071e-51.1443e-55.5401e-71.0096e-753.638
PII IVHHZ1.7486e-53.7807e-62.6547e-66.0173e-73.3129e-73.4999e-51.2313e-55.3001e-71.0108e-755.2130
PII IVHHN1.6595e-52.9180e-62.4301e-65.9619e-72.7984e-74.3465e-51.3753e-54.3145e-77.6158e-855.2130
PII IVHHE1.9892e-54.2299e-63.0186e-69.1698e-75.0111e-77.1700e-51.7959e-57.6424e-71.0504e-755.2130
GSCL GUHHZ1.0027e-52.8651e-62.2547e-61.3345e-66.5371e-72.1674e-51.3140e-59.3100e-79.4177e-858.253
GSCL GUHHN2.0183e-57.0672e-65.5187e-63.1128e-61.4175e-66.1928e-53.3636e-51.8416e-62.2810e-758.253
GSCL GUHHE1.9835e-58.0312e-67.2728e-63.3676e-61.2064e-65.1564e-55.0422e-51.7476e-62.5313e-758.253
BVT ITHNZ2.1554e-53.2262e-62.5683e-61.1904e-64.6155e-73.7018e-51.7177e-55.4684e-77.5419e-858.5339
BVT ITHNN5.3075e-58.4882e-66.2317e-62.0576e-61.0378e-61.7592e-43.3423e-51.4590e-62.2852e-758.5339
BVT ITHNE6.7193e-51.2676e-56.6742e-61.7682e-68.7202e-72.2282e-43.1851e-51.3134e-62.7445e-758.5339
POPM GUHHZ4.0165e-56.7469e-63.8964e-61.0544e-64.6596e-71.3396e-41.9510e-57.1426e-71.4177e-760.689
POPM GUHHN6.7908e-51.1671e-58.1029e-61.9681e-69.5639e-71.4375e-43.4743e-51.5957e-62.9820e-760.689
POPM GUHHE4.3378e-51.0450e-58.5748e-62.0428e-61.0410e-61.2816e-45.1020e-51.4995e-62.4767e-760.689
GORR GUHHZ1.2214e-52.1341e-61.3660e-65.6281e-72.4115e-72.5146e-56.6261e-63.2976e-75.1098e-884.7318
GORR GUHHN1.5437e-53.2024e-62.3858e-66.6180e-73.1992e-75.0103e-51.8006e-54.8284e-77.4105e-884.7318
GORR GUHHE1.3279e-52.5806e-61.9835e-61.2604e-65.2973e-75.7350e-51.4166e-56.8489e-77.7207e-884.7318
RNCA GUHHZ8.8527e-61.5528e-61.0148e-63.2607e-71.7022e-72.0770e-54.4984e-62.6834e-74.5716e-896.6300
RNCA GUHHN9.4582e-62.1578e-61.7933e-65.9703e-72.3713e-74.4159e-59.2157e-63.2921e-75.3837e-896.6300
RNCA GUHHE1.5289e-52.6025e-62.1558e-66.7872e-72.5859e-75.5842e-59.1271e-63.6256e-76.7790e-896.6300
OSSC IVHHZ1.3071e-63.2130e-73.0016e-72.0504e-78.5166e-83.3575e-61.2977e-61.0011e-71.0059e-8115.4120
OSSC IVHHN1.7388e-65.5803e-75.8662e-73.6752e-71.1352e-72.7762e-63.1662e-61.4364e-71.6782e-8115.4120
OSSC IVHHE1.6950e-65.0389e-75.4900e-72.1360e-79.6365e-83.2768e-62.5600e-61.3112e-71.5754e-8115.4120
PCP GUHHZ1.3929e-62.8446e-72.6453e-71.0950e-74.7256e-84.4482e-61.1894e-67.8702e-81.0129e-8128.8296
PCP GUHHN2.1583e-63.4316e-73.3448e-71.9053e-77.5733e-84.3268e-61.4318e-61.0304e-71.2036e-8128.8296
PCP GUHHE2.1422e-63.7110e-73.0511e-78.6437e-84.4700e-85.9378e-61.4978e-67.7489e-88.9320e-9128.8296
MORSIFRHHZ1.3211e-62.6341e-71.8129e-79.1327e-85.7877e-83.5364e-61.2065e-69.4013e-88.5224e-9131.8203
MORSIFRHHN1.4269e-62.3298e-72.0432e-79.2099e-84.5431e-83.8606e-69.5639e-76.1006e-86.8065e-9131.8203
MORSIFRHHE1.2938e-63.2485e-72.9106e-71.4738e-76.3753e-84.2185e-62.1454e-69.2839e-88.6486e-9131.8203
*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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