MANUAL Location - Area: Zona Chianti , magnitude (ML): 3.0
2025-02-02 19:29:16 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-02-03 09:27:21

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Earthquake info - Manual location
Event - ID :250202192843
Magnitude (ML) :3.0 +/- 0.1
Origin Time :2025-02-02 19:29:16.395 (UTC)
Location : Latitude: 43.311 N, Longitude: 11.381 E
Area :Zona Chianti
Depth (km) :10.98
Distances (km) : 4.4 --- Siena
9.4 --- Monteroni d Arbia
10.7 --- Castelnuovo Berardenga
12.8 --- Sovicille
15.6 --- Monteriggioni
15.6 --- Murlo
16.8 --- Asciano
18.0 --- Gaiole in Chianti
18.3 --- Rapolano Terme
19.2 --- Castellina in Chianti
19.7 --- Radda in Chianti
20.9 --- Buonconvento
24.0 --- Colle di Val d Elsa
24.4 --- San Giovanni d Asso
25.0 --- Monticiano
25.1 --- Cavriglia
26.0 --- Poggibonsi
26.7 --- Bucine
26.9 --- Trequanda
27.5 --- Casole d Elsa

Quality location estimate: Erh: 2.1 km, Erz: 1.5 km, Nf: 29, Gap: 287 °, Rms: 0.22


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.
CSNTIV2025-02-02 19:29:20.9500.0211-0.091.682025-02-02 19:29:24.4000.06710.001.7822.3
OSSCIV2025-02-02 19:29:22.0810.02000.041.742025-02-02 19:29:26.0750.04000.011.7628.4
RUFIIV2025-02-02 19:29:27.8400.0351-0.071.692025-02-02 19:29:36.1540.5879-0.010.8660.5
SEIIV2025-02-02 19:29:32.0400.04720.290.882025-02-02 19:29:43.0900.2537-0.430.8883.4
PIIIV2025-02-02 19:29:31.0800.0472-0.171.412025-02-02 19:29:41.3200.3628-0.590.7083.5
LMDIV2025-02-02 19:29:32.8300.0492-0.500.662025-02-02 19:29:43.8110.4959-2.050.0389.8
POPMGU2025-02-02 19:29:33.7600.05420.141.352025-02-02 19:29:46.8710.04000.680.3796.4
MAIMGU2025-02-02 19:29:33.5500.0552-0.041.562025-02-02 19:29:45.3700.4178-0.570.7198.6
BDIIV2025-02-02 19:29:34.8420.0602-0.281.132025-02-02 19:29:47.8410.1303-0.910.33105.2
CARDGU2025-02-02 19:29:35.3900.06930.181.212025-02-02 19:29:48.2090.0400-0.600.65108.0
MTRZIV2025-02-02 19:29:37.8140.02001.630.032025-02-02 19:29:52.1950.04000.990.20112.0
CMEIT2025-02-02 19:29:36.1870.02000.101.402025-02-02 19:29:51.1220.04000.850.27113.1
IMOLIV2025-02-02 19:29:39.9500.11351.570.002025-02-02 19:29:58.1910.04002.910.00120.6
ZCCAIV2025-02-02 19:29:39.5000.06631.130.002025-02-02 19:29:56.6900.04001.800.00120.6
SARMGU2025-02-02 19:29:37.9550.02000.061.422025-02-02 19:29:55.3730.04001.600.00125.5
GSCLGU2025-02-02 19:29:39.2120.0200-0.261.162025-02-02 19:29:56.2150.0400-0.261.02132.4
EQUIGU2025-02-02 19:29:39.7410.02000.261.032025-02-02 19:29:56.5540.0400-0.111.10137.4


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
OSSC IVHH3.101.74e+128.4335
MAIM GUHH2.887.01e-198.6313
CARD GUHH2.855.81e-1108.0318
MTRZ IVHH3.007.64e-1112.02
CME ITHN3.017.61e-1113.1310
ZCCA IVHH2.905.04e-1120.6344
SARM GUEH3.067.91e-1125.5321
GSCL GUHH2.924.09e-1132.4331


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.
(°)
OSSC IVHHZ2.9727e-47.3733e-56.2392e-54.5791e-52.1737e-51.1387e-33.0045e-42.9030e-52.7494e-628.4335
OSSC IVHHN5.2429e-41.3725e-41.2880e-47.6680e-53.4576e-51.8520e-36.0475e-44.7463e-53.7588e-628.4335
OSSC IVHHE8.2126e-41.9556e-41.3275e-47.9964e-54.0035e-52.0307e-36.3699e-45.2983e-57.2464e-628.4335
SEI IVHHZ1.0206e-43.8017e-53.4867e-51.5529e-55.9510e-61.5031e-43.3094e-47.6063e-61.1393e-683.4359
SEI IVHHN1.3333e-45.8233e-56.8772e-55.0681e-51.4330e-51.5962e-44.7799e-42.0122e-52.3172e-683.4359
SEI IVHHE6.9209e-52.2107e-52.6206e-51.5997e-55.3533e-61.6555e-41.8590e-46.4747e-66.2686e-783.4359
PII IVHHZ1.1019e-54.3581e-63.9859e-62.3682e-61.1406e-62.4759e-51.6790e-51.3247e-61.2726e-783.5304
PII IVHHN1.1432e-54.9533e-66.0421e-63.9126e-61.7410e-62.2709e-54.5975e-51.7824e-61.8546e-783.5304
PII IVHHE1.1864e-55.1041e-64.8677e-62.7201e-61.0994e-62.6849e-52.6941e-51.3631e-61.7045e-783.5304
POPM GUHHZ1.2968e-53.7110e-64.3102e-62.7514e-61.7426e-63.6158e-52.5751e-53.0647e-61.6668e-796.4329
POPM GUHHN2.6786e-58.9234e-67.8735e-63.5850e-61.7515e-65.6599e-55.0900e-53.0128e-62.7617e-796.4329
POPM GUHHE2.2003e-57.9574e-67.2485e-64.5252e-62.2342e-64.2761e-53.5953e-52.7588e-62.3686e-796.4329
MAIM GUHHZ7.3177e-63.2000e-62.9074e-62.5426e-61.1487e-61.4915e-51.6662e-51.1822e-61.0144e-798.6313
MAIM GUHHN1.2414e-54.8987e-65.2210e-64.5022e-61.4584e-62.7233e-51.9013e-51.6458e-61.6464e-798.6313
MAIM GUHHE7.1318e-62.4876e-62.5199e-62.5912e-61.4622e-62.0138e-51.1875e-51.5789e-69.7983e-898.6313
BDI IVHHZ1.0847e-54.5403e-63.9677e-63.2019e-61.3517e-61.9907e-51.7355e-51.8872e-61.4936e-7105.2323
BDI IVHHN1.3932e-54.2584e-64.2438e-63.6351e-61.8528e-63.4039e-52.0214e-52.3834e-61.6531e-7105.2323
BDI IVHHE1.0436e-53.7300e-63.7063e-62.7525e-61.6714e-63.1193e-52.1356e-51.9659e-61.4448e-7105.2323
CARD GUHHZ8.9412e-63.2399e-62.6569e-61.9489e-67.4681e-72.6024e-51.7003e-59.8472e-78.2812e-8108.0318
CARD GUHHN1.3039e-55.0966e-63.7993e-61.7742e-68.7794e-74.0969e-52.0876e-51.3650e-61.2527e-7108.0318
CARD GUHHE1.5824e-54.3376e-64.3824e-62.8422e-61.0111e-64.7557e-52.8153e-51.2729e-61.1507e-7108.0318
MTRZ IVHHZ4.9796e-63.2669e-62.3729e-62.3579e-61.1079e-65.0308e-61.2329e-51.5328e-61.3182e-7112.02
MTRZ IVHHN1.1702e-55.6595e-65.6207e-64.4371e-61.7616e-61.4167e-53.6644e-52.0079e-62.0201e-7112.02
MTRZ IVHHE9.4361e-64.9128e-63.3358e-62.8156e-61.8945e-61.1307e-51.9319e-52.6447e-62.0026e-7112.02
CME ITHNZ8.7100e-64.6269e-63.1196e-62.5005e-69.7526e-71.5617e-51.7570e-51.1625e-68.8214e-8113.1310
CME ITHNN1.4889e-55.6564e-65.0224e-62.7918e-61.0702e-62.3579e-53.9824e-51.3226e-61.8449e-7113.1310
CME ITHNE1.3098e-54.2181e-64.5105e-62.6686e-61.1234e-62.5603e-53.2329e-51.5700e-61.3614e-7113.1310
ZCCA IVHHZ2.2651e-61.0164e-61.1921e-69.9867e-74.8464e-74.2431e-69.1294e-64.9916e-73.4672e-8120.6344
ZCCA IVHHN3.4588e-61.8710e-61.5808e-61.9088e-61.4225e-64.3760e-69.5867e-62.0834e-69.9748e-8120.6344
ZCCA IVHHE2.9212e-61.6124e-61.6877e-61.5476e-66.9404e-73.3749e-61.0028e-59.2294e-76.0798e-8120.6344
SARM GUEHZ4.1105e-61.6020e-61.7148e-61.4005e-68.2305e-77.1179e-67.4977e-61.1084e-68.3733e-8125.5321
SARM GUEHN5.0814e-62.4118e-62.1774e-62.1681e-61.0776e-67.3008e-68.3804e-61.2778e-68.1532e-8125.5321
SARM GUEHE3.0174e-61.6814e-61.3716e-61.5751e-65.6154e-74.7388e-65.7994e-66.9613e-75.7405e-8125.5321
GSCL GUHHZ4.1601e-62.3720e-61.5486e-61.4450e-61.3618e-65.8550e-69.7148e-62.0339e-68.7862e-8132.4331
GSCL GUHHN4.1566e-61.9909e-62.1936e-62.1496e-61.5331e-67.9047e-61.4377e-51.9315e-61.0852e-7132.4331
GSCL GUHHE4.4722e-61.8730e-61.9813e-61.2198e-66.5709e-76.8278e-61.3416e-51.0539e-66.6049e-8132.4331
EQUI GUHHZ4.8416e-61.0091e-61.0001e-65.8149e-72.1504e-76.0717e-65.1138e-62.5991e-73.6290e-8137.4314
EQUI GUHHN2.9087e-61.0247e-69.6710e-77.6920e-72.9801e-76.5187e-66.0226e-63.4315e-73.1252e-8137.4314
EQUI GUHHE2.8745e-61.1816e-68.6388e-75.2018e-71.6418e-75.7611e-65.1865e-62.0871e-72.5760e-8137.4314
*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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