MANUAL Location - Area: Appennino ligure , magnitude (ML): 0.6
2025-05-14 15:45:37 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-05-15 08:16:17

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Earthquake info - Manual location
Event - ID :250514154521
Magnitude (ML) :0.6 +/- 0.2
Origin Time :2025-05-14 15:45:37.144 (UTC)
Location : Latitude: 44.784 N, Longitude: 8.955 E
Area :Appennino ligure
Depth (km) :18.52
Distances (km) : 2.4 --- Avolasca
2.6 --- Castellania
2.8 --- Sant Agata Fossili
3.5 --- Garbagna
4.3 --- Costa Vescovato
4.9 --- Sardigliano
5.2 --- Carezzano
5.5 --- Gavazzana
5.8 --- Borghetto di Borbera
6.0 --- Montegioco
6.4 --- Casasco
6.6 --- Paderna
6.9 --- Cerreto Grue
7.4 --- Cassano Spinola
7.6 --- Brignano-Frascata
7.7 --- Dernice
7.9 --- Montemarzino
8.6 --- Villalvernia
8.7 --- San Sebastiano Curone
8.9 --- Momperone

Quality location estimate: Erh: 1.2 km, Erz: 1.4 km, Nf: 10, Gap: 256 °, Rms: 0.06


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.
RNSIT2025-05-14 15:45:42.2540.02000.001.372025-05-14 15:45:46.1410.04000.051.1328.3
TGLIT2025-05-14 15:45:44.1180.0200-0.090.992025-05-14 15:45:49.5180.0400-0.041.0537.9
GORRGU2025-05-14 15:45:44.3500.01800.011.312025-05-14 15:45:50.0320.04000.011.0638.3
PCPGU2025-05-14 15:45:45.3500.02310.011.272025-05-14 15:45:51.1720.1604-0.110.7346.4
MSSAIV2025-05-14 15:45:49.6360.03610.160.672025-05-14 15:45:58.4640.4088-0.170.4171.2


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
RNS ITHN0.849.51e-228.3184
TGL ITHN0.815.08e-237.9149
GORR GUHH0.643.41e-238.3126
PCP GUHH0.431.59e-246.4230
MSSA IVHH0.223.62e-371.2139


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.
(°)
RNS ITHNZ4.7035e-68.8689e-75.2389e-72.8753e-71.4818e-71.0468e-53.8029e-62.3897e-72.0455e-828.3184
RNS ITHNN6.0246e-61.1629e-68.4525e-75.2694e-72.8719e-71.6565e-54.5771e-64.1593e-73.4136e-828.3184
RNS ITHNE4.5023e-68.6126e-77.9248e-74.3739e-72.3345e-71.0299e-54.8920e-62.3015e-73.0083e-828.3184
TGL ITHNZ2.6907e-64.1764e-73.6510e-73.0302e-71.5589e-74.1033e-62.7083e-62.2365e-71.4730e-837.9149
TGL ITHNN2.2870e-64.1484e-74.6966e-73.2272e-71.7633e-75.1653e-61.9525e-62.3225e-71.3716e-837.9149
TGL ITHNE1.9294e-64.5075e-74.5345e-72.7181e-71.4098e-74.0328e-62.5986e-61.8804e-71.4900e-837.9149
GORR GUHHZ1.5510e-63.0297e-72.3259e-78.9434e-85.0413e-82.7627e-61.7393e-67.2620e-87.4620e-938.3126
GORR GUHHN1.5605e-62.6613e-72.8403e-71.3220e-74.5621e-84.5037e-61.5012e-66.2647e-87.3824e-938.3126
GORR GUHHE1.5994e-63.5556e-73.0190e-71.2469e-74.9439e-85.1348e-61.3365e-66.7121e-81.0132e-838.3126
PCP GUHHZ6.9493e-71.1112e-71.0481e-77.2767e-83.3157e-81.4465e-64.3844e-74.1242e-83.8879e-946.4230
PCP GUHHN6.7353e-71.4911e-71.1907e-77.2682e-83.5665e-81.8893e-65.6472e-75.6901e-83.9173e-946.4230
PCP GUHHE9.1214e-71.6894e-71.2321e-76.3745e-83.0000e-82.4395e-66.0146e-74.2655e-85.4292e-946.4230
MSSA IVHHZ1.8036e-73.7739e-82.5735e-81.8942e-81.7356e-85.4917e-71.7024e-72.0930e-89.6381e-1071.2139
MSSA IVHHN5.9914e-76.5047e-83.1352e-81.7793e-81.3264e-84.9252e-71.5098e-72.0996e-81.7999e-971.2139
MSSA IVHHE7.2871e-78.5598e-82.8309e-81.7935e-81.8108e-88.0689e-71.3978e-72.9785e-82.1238e-971.2139
*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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