MANUAL Location - Area: Parmense , magnitude (ML): 1.6
2021-07-21 02:18:49 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-07-21 09:57:00

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Earthquake info - Manual location
Event - ID :210721021730
Magnitude (ML) :1.6 +/- 0.2
Origin Time :2021-07-21 02:18:49.883 (UTC)
Location : Latitude: 44.714 N, Longitude: 10.324 E
Area :Parmense
Depth (km) :19.74
Distances (km) : 6.4 --- Felino
7.3 --- Sala Baganza
7.9 --- Lesignano de Bagni
8.1 --- Montechiarugolo
9.2 --- Traversetolo
9.5 --- Collecchio
9.9 --- Parma
10.0 --- Montecchio Emilia
11.3 --- Sant Ilario d Enza
11.7 --- Langhirano
12.4 --- San Polo d Enza
13.0 --- Bibbiano
14.4 --- Neviano Degli Arduini
14.5 --- Canossa
14.5 --- Quattro Castella
15.2 --- Medesano
15.7 --- Noceto
15.8 --- Gattatico
16.2 --- Cavriago
17.7 --- Fornovo di Taro

Quality location estimate: Erh: 1.1 km, Erz: 1.6 km, Nf: 24, Gap: 133 °, Rms: 0.25


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.
NEVIIV2021-07-21 02:18:54.9670.02000.011.832021-07-21 02:18:58.1400.0400-1.020.3224.9
GRAMGU2021-07-21 02:18:56.9700.0231-0.041.762021-07-21 02:19:02.4190.1153-0.081.4438.1
GSCLGU2021-07-21 02:18:59.6400.0291-0.141.322021-07-21 02:19:06.6100.2066-0.860.4049.8
FIVIGU2021-07-21 02:19:00.4490.02000.021.702021-07-21 02:19:08.5700.04000.121.2858.5
SARMGU2021-07-21 02:19:01.4300.03110.201.072021-07-21 02:19:09.7000.1885-0.231.0362.7
EQUIGU2021-07-21 02:19:02.3270.02000.690.152021-07-21 02:19:09.7880.0400-0.790.4065.5
BOBIV2021-07-21 02:19:03.8140.02000.181.162021-07-21 02:19:14.2210.0400-0.191.1272.4
BDIIV2021-07-21 02:19:04.1470.03910.101.432021-07-21 02:19:14.4470.2356-0.191.0178.3
MSSAIV2021-07-21 02:19:04.3900.0402-0.011.562021-07-21 02:19:15.0990.2426-0.390.8180.4
POPMGU2021-07-21 02:19:05.3200.07630.121.322021-07-21 02:19:16.2800.3277-0.420.7984.3
GORRGU2021-07-21 02:19:06.1260.02000.790.142021-07-21 02:19:16.3670.0400-1.000.3484.8
BALDNI2021-07-21 02:19:10.5400.0572-0.131.252021-07-21 02:19:25.4830.6429-1.140.36116.5


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
NEVI IVHN1.841.21e+024.9182
GRAM GUHH1.839.74e-138.1220
FIVI GUHN1.398.11e-258.5197
SARM GUEH1.429.11e-262.7174
BOB IVHH1.313.88e-272.4275
BDI IVHH1.476.52e-278.3163
MSSA IVHH2.011.34e-180.4236
POPM GUHH1.397.50e-284.3155
GORR GUHH1.555.16e-284.8262


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.
(°)
NEVI IVHNZ3.0825e-54.8611e-62.4018e-67.5749e-74.3423e-74.4661e-51.2652e-55.3533e-78.9939e-824.9182
NEVI IVHNN3.0398e-59.4991e-69.6164e-64.8610e-62.0862e-67.6181e-55.7456e-52.8450e-63.0949e-724.9182
NEVI IVHNE2.2505e-55.1075e-65.5184e-62.4345e-61.1270e-68.0336e-53.1273e-51.4883e-61.8821e-724.9182
GRAM GUHHZ1.4251e-53.3591e-63.0814e-69.9634e-74.2920e-73.3909e-51.9685e-55.9892e-78.4523e-838.1220
GRAM GUHHN2.4190e-59.0582e-66.8691e-62.8238e-61.3866e-66.8823e-54.8879e-51.9881e-62.6840e-738.1220
GRAM GUHHE2.2187e-57.0579e-65.3578e-61.6846e-68.5207e-74.4244e-53.5455e-51.2171e-61.9024e-738.1220
GSCL GUHHZ1.1156e-62.2886e-72.2536e-71.4782e-78.1954e-82.5259e-69.9838e-71.0055e-76.8362e-949.8152
GSCL GUHHN1.7448e-65.2654e-74.6594e-72.4797e-71.1859e-73.6719e-62.3157e-61.5620e-71.3230e-849.8152
GSCL GUHHE1.4795e-64.7174e-74.1606e-72.1977e-71.0867e-73.2782e-62.2165e-61.1232e-71.2289e-849.8152
FIVI GUHNZ3.4854e-66.4753e-75.7443e-72.7435e-71.4100e-71.2443e-52.4666e-61.8393e-72.0117e-858.5197
FIVI GUHNN4.2730e-69.6374e-78.6803e-73.3717e-71.6066e-78.1008e-64.5755e-61.8601e-72.5213e-858.5197
FIVI GUHNE2.7928e-66.0075e-75.9013e-73.1446e-71.5427e-71.2403e-52.2140e-61.9720e-71.7320e-858.5197
SARM GUEHZ1.2777e-63.8518e-73.5844e-71.8403e-71.0057e-74.9424e-61.5714e-61.3316e-71.3303e-862.7174
SARM GUEHN2.5488e-68.1732e-77.6725e-75.0624e-72.2012e-77.3209e-63.7731e-62.6968e-73.0001e-862.7174
SARM GUEHE1.8377e-66.1384e-75.1136e-73.8815e-71.4464e-73.4888e-62.7407e-61.8982e-71.8598e-862.7174
EQUI GUHHZ6.9179e-71.4665e-71.4004e-71.0992e-75.2969e-81.8671e-67.2358e-75.7651e-84.9555e-965.5193
EQUI GUHHN3.3778e-71.1049e-79.0394e-88.1929e-84.3572e-89.0667e-74.6028e-75.0101e-83.9741e-965.5193
EQUI GUHHE8.2216e-72.1890e-71.9763e-72.2651e-71.5895e-72.4079e-66.5893e-71.9316e-71.0302e-865.5193
BOB IVHHZ1.4029e-63.0712e-72.3211e-71.3347e-76.1784e-82.5862e-61.2029e-67.7628e-88.4502e-972.4275
BOB IVHHN6.1993e-65.1900e-72.8958e-71.7917e-79.5236e-83.2569e-61.1803e-61.3660e-71.1781e-872.4275
BOB IVHHE5.9001e-64.7430e-72.5869e-72.2437e-71.7480e-73.1459e-68.8165e-72.5980e-71.8889e-872.4275
BDI IVHHZ1.5648e-63.2341e-73.1038e-71.7896e-76.5885e-84.4859e-61.7060e-68.9376e-81.1154e-878.3163
BDI IVHHN1.8772e-64.7697e-74.5357e-72.6176e-71.0294e-76.3023e-62.0422e-61.2924e-71.3754e-878.3163
BDI IVHHE2.0978e-64.9410e-74.6574e-72.9533e-71.2250e-76.2404e-62.4315e-61.3053e-71.4543e-878.3163
MSSA IVHHZ3.8590e-64.5773e-72.3186e-79.1825e-84.1570e-89.1285e-67.7570e-75.5624e-81.0825e-880.4236
MSSA IVHHN1.2210e-51.8729e-61.1064e-62.2202e-71.3529e-76.9795e-52.7641e-62.2314e-74.6158e-880.4236
MSSA IVHHE1.6328e-52.8582e-61.2431e-62.5706e-71.4532e-79.3590e-53.0683e-62.6462e-75.9113e-880.4236
POPM GUHHZ2.0841e-64.9023e-73.8139e-71.4181e-76.2935e-86.7400e-62.3598e-68.3180e-81.2765e-884.3155
POPM GUHHN1.9865e-66.1788e-75.1626e-72.2608e-71.1848e-75.3302e-62.8341e-61.3699e-71.8915e-884.3155
POPM GUHHE3.3341e-68.2185e-76.8040e-72.1378e-79.9265e-85.1042e-63.7168e-61.4841e-72.2079e-884.3155
GORR GUHHZ1.0992e-62.8751e-73.2416e-71.1409e-74.9077e-84.2877e-62.5002e-66.9684e-87.6718e-984.8262
GORR GUHHN1.3433e-65.4020e-74.7326e-72.1572e-71.2180e-73.2649e-64.0532e-61.5191e-71.3381e-884.8262
GORR GUHHE1.4894e-63.6209e-74.0203e-72.6145e-71.4693e-75.8012e-61.6019e-61.8398e-71.3852e-884.8262
BALD NIHHZ3.7189e-66.0943e-73.9809e-72.4056e-71.2808e-71.0400e-51.7253e-61.5908e-71.6726e-8116.520
BALD NIHHN6.8192e-61.7479e-61.3214e-66.4942e-72.5249e-71.4697e-55.6545e-63.1672e-74.1194e-8116.520
BALD NIHHE7.0681e-61.6174e-68.5964e-73.4872e-71.7427e-71.5810e-53.0884e-62.5636e-73.8200e-8116.520
*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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