MANUAL Location - Area: Frignano , magnitude (ML): 1.2
2025-10-31 15:53:36 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-11-01 23:45:07

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Earthquake info - Manual location
Event - ID :251031155318
Magnitude (ML) :1.2 +/- 0.2
Origin Time :2025-10-31 15:53:36.66 (UTC)
Location : Latitude: 44.463 N, Longitude: 10.396 E
Area :Frignano
Depth (km) :21.48
Distances (km) : 2.9 --- Castelnovo ne Monti
5.2 --- Vetto
9.7 --- Carpineti
9.9 --- Casina
10.8 --- Ramiseto
11.8 --- Busana
12.1 --- Villa Minozzo
14.9 --- Neviano Degli Arduini
15.1 --- Canossa
15.9 --- Collagna
16.1 --- Toano
16.4 --- Palanzano
16.6 --- Ligonchio
17.0 --- Baiso
17.0 --- Tizzano Val Parma
18.4 --- San Polo d Enza
19.3 --- Vezzano sul Crostolo
19.8 --- Langhirano
20.0 --- Traversetolo
20.1 --- Viano

Quality location estimate: Erh: 0.7 km, Erz: 0.8 km, Nf: 24, Gap: 155 °, Rms: 0.14


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.
ERBMIV2025-10-31 15:53:41.2300.01200.021.822025-10-31 15:53:43.9400.5069-0.770.3423.0
NEVIIV2025-10-31 15:53:42.0070.02000.081.332025-10-31 15:53:46.0060.0400-0.051.4926.5
GSCLGU2025-10-31 15:53:42.6000.0200-0.031.752025-10-31 15:53:46.8840.1625-0.091.0929.6
GRAMGU2025-10-31 15:53:42.8000.0170-0.051.652025-10-31 15:53:47.3400.1033-0.001.2934.6
SARMGU2025-10-31 15:53:43.5200.01900.001.752025-10-31 15:53:48.4900.11430.041.1938.3
FIVIGU2025-10-31 15:53:43.6320.02000.031.672025-10-31 15:53:48.0440.0400-0.530.3939.4
VLCMN2025-10-31 15:53:43.7500.0201-0.031.702025-10-31 15:53:49.3700.12130.470.1440.3
EQUIGU2025-10-31 15:53:44.4770.0200-0.011.692025-10-31 15:53:49.5200.1334-0.520.4144.0
CARDGU2025-10-31 15:53:45.7020.0200-0.510.402025-10-31 15:53:52.1000.4249-0.820.2953.7
POPMGU2025-10-31 15:53:47.1280.0200-0.220.692025-10-31 15:53:55.2690.04000.270.5558.8
MSSAIV2025-10-31 15:53:49.4850.0200-0.500.412025-10-31 15:53:58.3760.0400-1.550.0275.1
PIIIV2025-10-31 15:53:51.8900.0432-0.041.242025-10-31 15:54:02.6700.31070.030.7185.7


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
ERBM IVEH1.516.59e-123.0165
NEVI IVHN1.373.65e-126.5335
GSCL GUHH1.534.33e-129.6129
GRAM GUHH1.485.19e-134.6277
SARM GUEH0.968.63e-238.3179
VLC MNHH1.126.58e-240.3181
EQUI GUHH0.773.50e-244.0210
CARD GUHH1.226.63e-253.7172
POPM GUHH1.281.27e-158.8148
MSSA IVHH0.961.77e-275.1257
PII IVHH1.242.47e-285.7173


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.
(°)
ERBM IVEHZ2.3808e-54.1307e-62.4639e-61.2112e-64.9553e-76.9632e-58.0365e-67.1174e-71.0632e-723.0165
ERBM IVEHN5.9240e-51.1962e-55.0332e-61.7618e-68.7892e-71.7646e-41.6516e-51.4925e-62.4891e-723.0165
ERBM IVEHE5.4466e-59.3951e-64.3145e-61.4226e-66.8130e-71.9957e-42.1855e-51.0895e-62.1466e-723.0165
NEVI IVHNZ4.6866e-55.9252e-61.0851e-65.8869e-72.4124e-73.1810e-56.1095e-62.7888e-74.5001e-826.5335
NEVI IVHNN4.3689e-55.4032e-62.4959e-69.7578e-74.9713e-74.3855e-51.1970e-56.8804e-79.5007e-826.5335
NEVI IVHNE1.4065e-53.1731e-63.4975e-61.5647e-67.5631e-75.8025e-52.5895e-59.2566e-79.5532e-826.5335
GSCL GUHHZ6.6203e-61.2714e-69.7915e-76.3111e-72.5471e-71.4051e-54.9538e-62.8010e-73.2640e-829.6129
GSCL GUHHN1.8629e-54.2981e-63.3231e-61.4692e-67.6036e-74.8293e-51.8739e-51.0696e-61.3513e-729.6129
GSCL GUHHE1.2950e-53.8407e-63.1524e-61.1829e-65.4236e-72.3330e-52.1078e-57.6460e-71.1295e-729.6129
GRAM GUHHZ2.6500e-54.0960e-62.2277e-65.3098e-72.9685e-75.3165e-57.9149e-65.0517e-79.5531e-834.6277
GRAM GUHHN2.4388e-56.6246e-63.4146e-61.5049e-67.8825e-77.6861e-52.0995e-51.1574e-61.8194e-734.6277
GRAM GUHHE3.1961e-56.7740e-65.1947e-61.5121e-66.4023e-77.1855e-52.8268e-59.2739e-71.5513e-734.6277
SARM GUEHZ4.7067e-67.7202e-75.5350e-72.1175e-78.8071e-81.1069e-53.6025e-61.2335e-71.8830e-838.3179
SARM GUEHN8.1650e-61.4406e-68.2376e-73.5479e-71.3726e-71.2976e-53.1861e-61.8862e-72.9052e-838.3179
SARM GUEHE5.2554e-61.0669e-66.3204e-73.3235e-71.3291e-72.2539e-53.1399e-61.6444e-72.2991e-838.3179
FIVI GUHNZ1.7081e-52.7841e-61.6529e-66.4603e-73.5232e-72.7925e-55.5584e-65.6957e-77.9237e-839.4221
FIVI GUHNN2.0569e-54.6676e-62.5607e-61.0555e-64.4509e-73.6406e-59.6699e-66.0581e-79.9231e-839.4221
FIVI GUHNE1.1343e-52.6225e-62.4051e-61.0376e-64.7157e-73.9122e-51.0160e-55.7959e-77.0232e-839.4221
VLC MNHHZ3.2833e-66.9778e-73.6874e-71.2904e-76.8436e-81.0933e-51.2915e-69.4817e-81.6756e-840.3181
VLC MNHHN8.9909e-61.2656e-65.4282e-71.9656e-71.2524e-72.8995e-51.5572e-62.0381e-73.4773e-840.3181
VLC MNHHE4.9512e-68.9103e-74.1399e-71.3801e-76.2846e-81.7949e-51.5381e-68.7393e-81.9207e-840.3181
EQUI GUHHZ2.1393e-64.1678e-72.8387e-71.5600e-77.7453e-84.8716e-61.7513e-68.7796e-81.1451e-844.0210
EQUI GUHHN2.2076e-63.6698e-73.3731e-72.2572e-78.0196e-85.9974e-62.3972e-69.9966e-81.0561e-844.0210
EQUI GUHHE3.5701e-63.6761e-72.8092e-71.5631e-77.1183e-86.3617e-61.5112e-68.4013e-81.1276e-844.0210
CARD GUHHZ2.2923e-63.6437e-72.1596e-71.1174e-75.9105e-86.3234e-68.5415e-76.6684e-88.4106e-953.7172
CARD GUHHN4.0153e-66.9493e-74.7554e-72.2959e-71.0717e-71.1890e-51.5574e-61.4426e-71.7685e-853.7172
CARD GUHHE6.0006e-61.2149e-65.9258e-71.9213e-79.2203e-81.7479e-51.5973e-61.3176e-72.5388e-853.7172
POPM GUHHZ2.3893e-66.0009e-75.2707e-74.1770e-71.4758e-77.2146e-62.4873e-61.5980e-72.1246e-858.8148
POPM GUHHN3.2357e-61.0691e-68.9041e-75.9046e-72.4561e-77.4453e-64.9674e-63.0615e-72.9938e-858.8148
POPM GUHHE3.0694e-61.0206e-68.7611e-76.3517e-72.3793e-77.2931e-64.4430e-62.4618e-73.1242e-858.8148
MSSA IVHHZ4.6622e-78.6300e-81.0026e-75.4726e-82.5403e-81.7366e-64.6549e-72.8430e-82.9369e-975.1257
MSSA IVHHN4.6686e-71.2412e-71.1371e-76.8994e-83.5069e-81.1906e-65.5709e-74.2874e-84.4229e-975.1257
MSSA IVHHE1.7795e-61.5724e-71.4567e-76.8867e-83.0888e-81.3829e-67.8101e-73.6745e-84.5145e-975.1257
PII IVHHZ2.4531e-66.2297e-74.8231e-71.2676e-76.1538e-81.0938e-52.4562e-69.4769e-81.7153e-885.7173
PII IVHHN8.5971e-72.5761e-72.5085e-71.1292e-73.5511e-82.0240e-61.7065e-64.5861e-87.9461e-985.7173
PII IVHHE1.1386e-63.1115e-72.3137e-78.9828e-83.6304e-83.6255e-61.3705e-64.6669e-87.9522e-985.7173
*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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