MANUAL Location - Area: Alpi Marittime , magnitude (ML): 1.4
2025-03-30 16:11:08 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-03-31 07:24:02

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Earthquake info - Manual location
Event - ID :250330161025
Magnitude (ML) :1.4 +/- 0.2
Origin Time :2025-03-30 16:11:08.725 (UTC)
Location : Latitude: 43.875 N, Longitude: 7.335 E
Area :Alpi Marittime
Depth (km) :22.84
Distances (km) : 14.5 --- Olivetta San Michele
17.5 --- Airole
21.4 --- Rocchetta Nervina
23.2 --- Dolceacqua
23.8 --- Ventimiglia
24.3 --- Camporosso
24.4 --- Isolabona
25.9 --- Apricale
26.0 --- San Biagio della Cima
26.0 --- Soldano
26.3 --- Vallecrosia
26.6 --- Perinaldo
27.1 --- Pigna
27.4 --- Vallebona
27.8 --- Castel Vittorio
28.1 --- Bordighera
29.2 --- Seborga
31.1 --- Baiardo
31.7 --- Ospedaletti
35.2 --- Ceriana

Quality location estimate: Erh: 0.8 km, Erz: 0.8 km, Nf: 52, Gap: 74 °, Rms: 0.35


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.
ESCAFR2025-03-30 16:11:13.4700.01400.180.912025-03-30 16:11:16.1700.0671-0.461.1424.1
TURFFR2025-03-30 16:11:14.3100.01500.410.232025-03-30 16:11:17.8100.07720.081.2925.8
MVIFFR2025-03-30 16:11:14.1400.01500.001.492025-03-30 16:11:17.4890.0802-0.650.8727.2
BURYGU2025-03-30 16:11:14.0400.0170-0.571.052025-03-30 16:11:17.4900.0892-1.480.0830.7
SAOFFR2025-03-30 16:11:15.0300.02310.031.462025-03-30 16:11:19.1200.0942-0.511.0931.8
MLIGIV2025-03-30 16:11:15.6820.0200-0.620.952025-03-30 16:11:20.6950.0400-1.230.1738.2
BRDIT2025-03-30 16:11:15.5150.1004-0.431.142025-03-30 16:11:20.7700.0400-0.541.0639.4
BIGNGU2025-03-30 16:11:15.9100.0221-0.061.412025-03-30 16:11:21.0600.1173-0.291.1940.3
SNRMIT2025-03-30 16:11:16.2790.0200-0.021.462025-03-30 16:11:21.9030.0400-0.041.3543.2
EILFFR2025-03-30 16:11:16.3830.0200-0.391.122025-03-30 16:11:21.6000.1334-0.850.4946.0
ENRGU2025-03-30 16:11:17.3100.02510.250.712025-03-30 16:11:22.8000.1404-0.191.2446.6
STVGU2025-03-30 16:11:17.3400.02000.091.302025-03-30 16:11:23.0360.1444-0.221.2347.5
ISOFR2025-03-30 16:11:17.6600.02510.490.182025-03-30 16:11:23.1180.1434-0.081.2647.6
MGROGU2025-03-30 16:11:17.5100.0361-0.381.132025-03-30 16:11:23.5500.1444-1.150.2348.8
IMIGU2025-03-30 16:11:17.7200.02710.121.202025-03-30 16:11:24.0160.3788-0.211.0450.7
VINDIV2025-03-30 16:11:18.5540.0200-0.151.222025-03-30 16:11:25.1340.0400-0.501.0754.9
PVTIT2025-03-30 16:11:18.6870.0200-0.041.402025-03-30 16:11:25.4780.0400-0.730.7155.5
GBOSGU2025-03-30 16:11:19.8600.03810.171.042025-03-30 16:11:27.4000.1875-0.131.2062.0
ROROGU2025-03-30 16:11:20.8570.02000.151.102025-03-30 16:11:29.3200.2056-0.171.1768.1
PZZGU2025-03-30 16:11:21.8210.0200-0.590.992025-03-30 16:11:31.3890.4209-0.760.6976.3
SURFFR2025-03-30 16:11:23.1800.0422-0.221.212025-03-30 16:11:33.1500.2507-0.610.8582.4
CANOGU2025-03-30 16:11:23.3990.0200-0.301.172025-03-30 16:11:33.8370.2757-0.780.6784.3
OGDIFR2025-03-30 16:11:25.1800.0803-0.121.272025-03-30 16:11:37.0180.0400-0.111.1795.2
QLNOIV2025-03-30 16:11:25.7100.0512-0.081.292025-03-30 16:11:37.3800.2947-0.950.5297.7
BHBGU2025-03-30 16:11:25.6710.0200-0.740.692025-03-30 16:11:39.0600.5479-0.260.81109.4
OGAGFR2025-03-30 16:11:29.5060.02000.051.172025-03-30 16:11:43.8740.0400-0.191.10121.9


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
ESCA FRHH1.648.13e-124.1147
TURF FRHH1.071.94e-125.822
BURY GUHH1.091.48e-130.7120
BRD ITHN1.119.49e-239.485
BIGN GUEH1.271.31e-140.391
SNRM ITHN1.622.58e-143.299
EILF FRHH1.773.22e-146.0204
ENR GUHH1.814.72e-146.610
STV GUHH1.671.61e-147.5359
ISO FRHH1.197.77e-247.6327
MGRO GUHH1.177.05e-248.864
IMI GUHH1.341.30e-150.785
PVT ITHN1.388.92e-255.568
GBOS GUHH1.595.78e-262.045
RORO GUHH1.466.84e-268.165
PZZ GUHH1.377.50e-276.3346
CANO GUHH1.707.51e-284.363
QLNO IVHH1.412.73e-297.758
BHB GUHH1.191.14e-2109.4357
OGAG FRHH1.522.05e-2121.9328


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.
(°)
ESCA FRHHZ7.0114e-51.0568e-54.0202e-61.0835e-66.2474e-71.1437e-41.6692e-59.7314e-72.1802e-724.1147
ESCA FRHHN1.4530e-41.4724e-55.1974e-61.9600e-61.1440e-62.0831e-42.2053e-51.9459e-63.6228e-724.1147
ESCA FRHHE9.2640e-58.5908e-62.5994e-69.3735e-75.1203e-76.2073e-51.0201e-59.3147e-71.8498e-724.1147
TURF FRHHZ5.9708e-57.1724e-67.3039e-72.3782e-71.6294e-74.7022e-52.5703e-63.0387e-75.0461e-825.822
TURF FRHHN4.4347e-54.3498e-61.3315e-64.6868e-72.7640e-78.1816e-54.9673e-64.7424e-79.1287e-825.822
TURF FRHHE3.0643e-52.8432e-61.1453e-64.6514e-72.5500e-73.8919e-54.2622e-64.3017e-77.0558e-825.822
BURY GUHHZ2.2667e-52.6735e-68.3332e-72.6999e-71.5027e-75.3246e-54.1777e-62.4544e-75.9178e-830.7120
BURY GUHHN2.5569e-53.0866e-61.1499e-64.5055e-72.3424e-74.2977e-55.5137e-63.2813e-76.0529e-830.7120
BURY GUHHE2.9897e-53.5508e-61.1566e-63.2269e-71.8788e-77.2570e-54.4784e-63.5154e-78.1578e-830.7120
SAOF FRHHZ1.0132e-51.4123e-61.0299e-64.9076e-72.0867e-72.1160e-55.5594e-62.7812e-73.3864e-831.855
SAOF FRHHN1.5825e-51.8351e-67.5177e-72.0930e-71.0937e-72.5478e-53.5097e-61.9710e-73.8223e-831.855
SAOF FRHHE1.2577e-51.6868e-66.9259e-72.3849e-71.3444e-72.0081e-53.4694e-61.9125e-72.9471e-831.855
BRD ITHNZ1.4109e-51.4037e-65.4254e-72.9955e-71.6159e-72.0129e-52.6553e-63.2117e-73.8856e-839.485
BRD ITHNN1.5537e-51.7038e-67.7928e-72.9858e-71.7584e-72.6757e-54.6922e-63.1744e-73.8403e-839.485
BRD ITHNE1.1609e-51.5051e-68.9918e-74.0010e-71.9099e-72.5519e-54.4016e-62.5317e-73.5394e-839.485
BIGN GUEHZ1.2840e-51.1902e-63.3206e-79.0569e-85.5969e-82.5745e-51.0195e-61.0394e-72.4399e-840.391
BIGN GUEHN2.4341e-52.4778e-67.9575e-71.6865e-71.0149e-76.3889e-52.4185e-62.1520e-75.1744e-840.391
BIGN GUEHE2.9142e-53.3673e-68.2164e-72.3848e-71.3791e-76.4212e-53.4762e-62.7119e-77.4669e-840.391
SNRM ITHNZ2.3009e-52.9362e-61.1098e-63.0329e-71.9388e-76.4622e-53.8954e-63.1636e-76.0431e-843.299
SNRM ITHNN4.6244e-55.1027e-62.2348e-65.9136e-73.4141e-71.2994e-41.0346e-57.3021e-71.2121e-743.299
SNRM ITHNE4.5151e-55.2421e-61.7957e-67.2340e-77.3121e-71.1235e-47.8385e-69.5787e-71.1828e-743.299
EILF FRHHZ6.7149e-56.9894e-61.0956e-63.7513e-72.1372e-76.6452e-54.1970e-64.9168e-71.3197e-746.0204
EILF FRHHN7.4015e-58.6211e-62.3779e-66.4831e-73.4210e-71.5398e-46.7809e-66.9992e-71.7240e-746.0204
EILF FRHHE5.6519e-56.0725e-61.3749e-64.7510e-72.4436e-77.8065e-55.6261e-64.7420e-71.1547e-746.0204
ENR GUHHZ3.0861e-54.1326e-61.5818e-64.0091e-72.3571e-73.7252e-57.1950e-64.1643e-79.6652e-846.610
ENR GUHHN9.1568e-51.0833e-53.1430e-68.8514e-74.6642e-71.5944e-41.1801e-59.4095e-72.2166e-746.610
ENR GUHHE1.7951e-41.3951e-53.2062e-69.4424e-74.5165e-78.3882e-51.4455e-59.9543e-72.6517e-746.610
STV GUHHZ8.6836e-61.6606e-67.5848e-72.5131e-71.2934e-71.5262e-52.7931e-61.9947e-73.5880e-847.5359
STV GUHHN1.3104e-52.4914e-61.1567e-63.5605e-72.2395e-71.9363e-54.7430e-63.4333e-75.2512e-847.5359
STV GUHHE1.5740e-52.1237e-61.0874e-63.4364e-71.7645e-72.4264e-55.0571e-62.8351e-74.7559e-847.5359
ISO FRHHZ1.2539e-51.3395e-64.3919e-72.2380e-71.0983e-71.9642e-52.7777e-61.6974e-72.8369e-847.6327
ISO FRHHN1.8989e-51.7593e-66.0259e-71.7918e-78.8701e-81.7408e-53.1493e-61.5528e-73.0449e-847.6327
ISO FRHHE1.2960e-51.6646e-64.3493e-71.8023e-78.9423e-82.5307e-51.6836e-61.6797e-73.7498e-847.6327
MGRO GUHHZ3.8986e-64.2746e-72.9303e-79.3052e-84.4030e-89.7054e-61.5562e-66.6631e-81.0314e-848.864
MGRO GUHHN5.9907e-68.1539e-75.2542e-72.5970e-71.0222e-71.9642e-52.2150e-61.4760e-72.2566e-848.864
MGRO GUHHE7.6827e-61.1821e-65.2283e-71.5966e-78.5657e-81.7121e-51.9363e-61.3653e-72.7371e-848.864
IMI GUHHZ1.3484e-51.4362e-65.9361e-72.0320e-78.3730e-82.4219e-52.6155e-61.2668e-72.9525e-850.785
IMI GUHHN2.6676e-53.7342e-61.0475e-63.0295e-71.6078e-75.4345e-55.6717e-62.7895e-77.2958e-850.785
IMI GUHHE1.2400e-51.7480e-69.6575e-72.7887e-71.4546e-73.4241e-55.3005e-62.2628e-73.9524e-850.785
PVT ITHNZ1.6173e-51.2911e-64.9456e-73.0726e-71.6357e-72.1697e-51.7907e-62.6406e-72.8223e-855.568
PVT ITHNN2.1151e-51.7333e-66.5959e-73.1826e-71.6276e-72.7316e-52.5113e-62.4143e-74.0306e-855.568
PVT ITHNE2.7397e-52.6518e-66.7861e-73.2614e-72.0252e-73.6085e-52.5046e-63.2896e-76.0591e-855.568
GBOS GUHHZ5.2554e-61.3529e-65.3837e-71.9271e-71.1404e-71.7464e-52.3282e-61.7217e-73.3116e-862.045
GBOS GUHHN4.1085e-68.8015e-74.2217e-71.9171e-78.3836e-81.2114e-51.6934e-61.3563e-72.0429e-862.045
GBOS GUHHE4.3855e-66.4244e-73.9153e-71.1914e-75.0048e-81.3937e-51.3844e-67.6324e-81.5613e-862.045
RORO GUHHZ9.1460e-61.2172e-63.6465e-79.8474e-85.6008e-81.7329e-51.4598e-61.1081e-72.6682e-868.165
RORO GUHHN7.6353e-61.1464e-66.2864e-71.4537e-77.5348e-81.9225e-51.8698e-61.1943e-72.5695e-868.165
RORO GUHHE7.2024e-69.9790e-75.4404e-71.0614e-75.9964e-81.3684e-51.5905e-69.9643e-82.2409e-868.165
PZZ GUHHZ4.8796e-69.3069e-74.1807e-71.5234e-75.6319e-89.7151e-61.7322e-68.3970e-81.9686e-876.3346
PZZ GUHHN5.3815e-68.4416e-75.6846e-72.3558e-79.6134e-81.2312e-52.8240e-61.3195e-71.9944e-876.3346
PZZ GUHHE6.7180e-61.0423e-66.6242e-72.0038e-71.0870e-71.3692e-52.5291e-61.4443e-72.4756e-876.3346
CANO GUHHZ1.3615e-51.4992e-63.0079e-71.1363e-75.6850e-81.2832e-51.3062e-61.0287e-72.6993e-884.363
CANO GUHHN1.5591e-51.7189e-65.9180e-71.9995e-79.0630e-82.2877e-53.2818e-61.6498e-74.0044e-884.363
CANO GUHHE1.3103e-51.3483e-65.6371e-72.1803e-78.8347e-82.0977e-52.8732e-61.4652e-73.0050e-884.363
QLNO IVHHZ1.0294e-61.5256e-71.2627e-75.8887e-82.3842e-82.5702e-68.9685e-72.9612e-84.5435e-997.758
QLNO IVHHN2.1306e-63.9112e-71.9820e-76.8335e-82.9771e-85.1213e-61.0760e-64.3772e-88.1753e-997.758
QLNO IVHHE2.1446e-63.3775e-72.5501e-71.1886e-74.6798e-84.5100e-61.3159e-66.0192e-89.1783e-997.758
BHB GUHHZ1.3827e-61.5881e-76.6347e-82.3536e-81.9265e-83.1131e-62.7786e-74.0551e-83.1102e-9109.4357
BHB GUHHN1.2837e-61.7717e-77.5638e-82.2198e-81.3945e-82.6055e-63.0667e-73.0009e-84.3408e-9109.4357
BHB GUHHE1.5260e-61.9932e-78.9156e-83.5191e-82.2535e-84.6098e-62.8194e-74.9228e-84.7571e-9109.4357
OGAG FRHHZ3.2745e-71.2159e-71.2145e-75.2567e-82.6740e-81.1952e-61.0644e-63.7159e-83.8737e-9121.9328
OGAG FRHHN2.4788e-77.1955e-86.6400e-82.3384e-81.0775e-87.3101e-74.0062e-71.3942e-81.8091e-9121.9328
OGAG FRHHE3.8003e-71.7863e-71.5012e-78.0575e-83.7810e-89.1545e-71.1806e-65.1587e-85.2423e-9121.9328
*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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