MANUAL Location - Area: Garfagnana , magnitude (ML): 0.9
2025-04-01 14:43:45 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-04-02 07:10:23

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Earthquake info - Manual location
Event - ID :250401144212
Magnitude (ML) :0.9 +/- 0.2
Origin Time :2025-04-01 14:43:45.825 (UTC)
Location : Latitude: 44.128 N, Longitude: 10.421 E
Area :Garfagnana
Depth (km) :2.63
Distances (km) : 1.0 --- Pieve Fosciana
2.1 --- Castelnuovo di Garfagnana
2.6 --- Castiglione di Garfagnana
3.4 --- Fosciandora
4.0 --- Villa Collemandina
6.0 --- Molazzana
7.4 --- Gallicano
7.6 --- San Romano in Garfagnana
7.6 --- Camporgiano
7.8 --- Careggine
7.9 --- Barga
8.9 --- Vergemoli
11.0 --- Coreglia Antelminelli
11.0 --- Vagli Sotto
11.6 --- Piazza al Serchio
14.3 --- Sillano
14.5 --- Fabbriche di Vallico
16.7 --- Giuncugnano
17.5 --- Stazzema
17.6 --- Minucciano

Quality location estimate: Erh: 0.4 km, Erz: 1 km, Nf: 26, Gap: 81 °, Rms: 0.12


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.
SARMGU2025-04-01 14:43:47.7800.00400.200.902025-04-01 14:43:48.8840.10020.011.597.4
CARDGU2025-04-01 14:43:48.6000.01200.220.822025-04-01 14:43:50.5640.14840.310.5812.7
BDIIV2025-04-01 14:43:49.1900.0080-0.011.832025-04-01 14:43:51.4900.0491-0.180.8116.2
CMEIT2025-04-01 14:43:50.0160.0200-0.051.692025-04-01 14:43:53.1780.04000.011.7121.8
EQUIGU2025-04-01 14:43:50.1020.02000.031.782025-04-01 14:43:53.1300.0671-0.041.5822.0
MAIMGU2025-04-01 14:43:50.5170.0803-0.101.372025-04-01 14:43:54.2200.07620.081.4924.7
GSCLGU2025-04-01 14:43:51.7300.0140-0.091.452025-04-01 14:43:55.9400.0832-0.210.7728.3
POPMGU2025-04-01 14:43:51.3700.01400.051.682025-04-01 14:43:55.4200.08620.031.5228.6
ERBMIV2025-04-01 14:43:52.6300.01600.111.372025-04-01 14:43:57.2500.1965-0.370.4332.6
PIIIV2025-04-01 14:43:53.6710.0200-1.010.062025-04-01 14:43:59.8600.1404-1.440.0246.0
PLMAIV2025-04-01 14:43:54.4100.0914-0.011.522025-04-01 14:43:59.9700.1414-0.810.0846.2
GRAMGU2025-04-01 14:43:55.0920.02000.210.932025-04-01 14:44:02.1400.04000.940.0049.4
MSSAIV2025-04-01 14:44:00.9190.02001.560.002025-04-01 14:44:11.9950.04002.540.0075.0


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
SARM GUEH0.495.77e-17.4346
CARD GUHH0.803.76e-112.7157
BDI IVHH0.813.13e-116.2117
CME ITHN1.092.81e-121.8206
EQUI GUHH0.619.13e-222.0281
MAIM GUHH0.697.73e-224.7167
GSCL GUHH1.182.12e-128.328
POPM GUHH1.164.05e-128.6109
ERBM IVEH0.664.87e-232.6359
PII IVHH0.823.59e-246.0170
PLMA IVHH0.974.87e-246.2259
GRAM GUHH1.351.90e-149.4325
MSSA IVHH0.951.73e-275.0287


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.
(°)
SARM GUEHZ4.0080e-54.3539e-62.6551e-61.1976e-65.2452e-74.2809e-51.8937e-56.7261e-79.4151e-87.4346
SARM GUEHN2.9481e-55.3394e-63.7069e-62.8490e-61.0925e-67.9206e-51.5230e-51.2979e-61.5031e-77.4346
SARM GUEHE3.3823e-55.2039e-62.9795e-62.5645e-61.2264e-66.0274e-51.5688e-51.5936e-61.5697e-77.4346
CARD GUHHZ1.8987e-52.8114e-69.9355e-74.7424e-72.0223e-75.6049e-53.7250e-62.9122e-75.9553e-812.7157
CARD GUHHN3.9866e-56.7734e-62.9490e-61.0533e-64.4201e-79.6559e-51.0283e-57.1093e-71.4411e-712.7157
CARD GUHHE3.8642e-55.5886e-62.6796e-68.0085e-73.4961e-78.0873e-59.7706e-65.7179e-71.1180e-712.7157
BDI IVHHZ2.4051e-52.8730e-61.3358e-63.9700e-71.6644e-74.9338e-55.4948e-62.8934e-76.8088e-816.2117
BDI IVHHN3.3050e-54.7461e-62.7951e-69.9863e-74.4765e-74.9520e-51.6193e-56.8835e-71.1153e-716.2117
BDI IVHHE3.5550e-54.9096e-62.4327e-67.4876e-73.8492e-76.5319e-58.5131e-65.7330e-79.5395e-816.2117
CME ITHNZ1.0742e-51.9922e-61.3759e-65.7336e-72.3985e-72.1396e-56.8179e-63.4403e-75.4494e-821.8206
CME ITHNN1.2634e-52.7486e-62.1508e-69.2719e-74.3935e-72.9993e-59.4639e-65.9396e-78.1724e-821.8206
CME ITHNE1.3580e-52.7924e-62.1487e-61.1625e-65.4760e-72.7926e-51.0912e-56.2483e-78.2447e-821.8206
EQUI GUHHZ7.6308e-69.0665e-74.8051e-73.0337e-71.2126e-71.5057e-52.4129e-61.4285e-72.1900e-822.0281
EQUI GUHHN9.2644e-61.1349e-67.9755e-73.9939e-71.6631e-71.6646e-54.3044e-62.1797e-73.0367e-822.0281
EQUI GUHHE7.8392e-61.3029e-66.0967e-73.2636e-71.0599e-71.1733e-52.0855e-61.3971e-72.7155e-822.0281
MAIM GUHHZ3.3421e-65.5324e-73.7553e-71.6726e-77.9068e-86.7375e-61.9776e-61.1419e-71.3792e-824.7167
MAIM GUHHN6.3128e-69.9517e-77.3239e-72.2884e-79.8076e-81.0803e-54.3595e-61.4027e-72.3742e-824.7167
MAIM GUHHE5.4763e-61.0869e-65.8487e-72.4133e-79.1158e-81.2838e-54.0458e-61.3112e-72.3982e-824.7167
GSCL GUHHZ3.8683e-67.6996e-74.7678e-71.8866e-78.6057e-81.2557e-52.0464e-61.2572e-71.9250e-828.328
GSCL GUHHN8.0403e-62.4468e-61.6123e-66.0128e-73.2409e-73.0619e-59.3757e-64.5479e-76.3197e-828.328
GSCL GUHHE5.2125e-61.7443e-61.2799e-63.9487e-71.8438e-71.8052e-57.2225e-62.5529e-73.9579e-828.328
POPM GUHHZ2.3979e-52.9161e-61.3227e-64.1713e-71.9832e-74.3706e-55.7424e-63.2918e-76.9765e-828.6109
POPM GUHHN2.7569e-56.4859e-63.7014e-68.6565e-74.8400e-76.1679e-51.2732e-57.5431e-71.4504e-728.6109
POPM GUHHE2.6736e-55.0250e-62.5951e-67.6595e-73.8058e-77.6240e-51.0484e-56.2371e-71.2478e-728.6109
ERBM IVEHZ1.8285e-63.5954e-72.8794e-71.7715e-77.2433e-86.9638e-69.8513e-71.0044e-79.3096e-932.6359
ERBM IVEHN3.4518e-66.2604e-74.8226e-71.9329e-77.3819e-81.4306e-51.8411e-69.5929e-81.4629e-832.6359
ERBM IVEHE2.3562e-65.2000e-73.9476e-71.5273e-71.0148e-78.8744e-61.7063e-61.7074e-72.4446e-832.6359
PII IVHHZ1.5161e-62.7438e-72.7363e-77.8059e-83.5067e-83.1592e-61.4130e-65.3434e-87.8617e-946.0170
PII IVHHN2.1023e-63.8041e-72.5214e-77.0838e-83.4892e-83.6966e-61.0609e-65.4252e-89.1303e-946.0170
PII IVHHE2.1431e-64.1777e-73.1739e-79.3529e-84.6090e-83.6411e-61.9746e-66.3568e-89.4704e-946.0170
PLMA IVHHZ1.9790e-64.0277e-72.9167e-71.3902e-78.2444e-84.4155e-61.0717e-61.2531e-71.0703e-846.2259
PLMA IVHHN3.0184e-66.2343e-74.1872e-71.6624e-79.7882e-87.4263e-62.1493e-61.0654e-71.4722e-846.2259
PLMA IVHHE2.4003e-65.4489e-74.0257e-71.8294e-71.1913e-77.5789e-61.4221e-61.3905e-71.7427e-846.2259
GRAM GUHHZ3.5709e-63.5937e-73.1932e-71.2755e-75.2720e-83.4532e-62.4131e-67.8480e-81.0378e-849.4325
GRAM GUHHN6.0877e-69.4474e-79.4290e-73.3897e-71.3036e-78.0418e-69.4697e-61.8193e-72.7940e-849.4325
GRAM GUHHE4.8033e-61.6638e-61.5491e-66.9964e-72.8174e-76.9862e-61.8092e-53.8368e-74.6440e-849.4325
MSSA IVHHZ5.6195e-79.5941e-88.0215e-83.6163e-81.9930e-81.9946e-63.2559e-72.7572e-82.9509e-975.0287
MSSA IVHHN7.5431e-71.8858e-71.6061e-79.1153e-83.4967e-81.8837e-66.5767e-74.5778e-85.9389e-975.0287
MSSA IVHHE5.8567e-71.3007e-71.3522e-75.5960e-82.8937e-81.5929e-67.9338e-73.5211e-84.4610e-975.0287
*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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