MANUAL Location - Area: Alpi Pennine , magnitude (ML): 0.2
2025-05-09 09:00:25 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-05-09 13:42:13

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Earthquake info - Manual location
Event - ID :250509085846
Magnitude (ML) :0.2 +/- 0.1
Origin Time :2025-05-09 09:00:25.362 (UTC)
Location : Latitude: 45.805 N, Longitude: 7.439 E
Area :Alpi Pennine
Depth (km) :6.01
Distances (km) : 6.9 --- Oyace
7.2 --- Quart
7.3 --- Nus
7.9 --- Bionaz
8.2 --- Saint-Marcel
8.6 --- Verrayes
8.9 --- Fenis
8.9 --- Brissogne
9.0 --- Saint-Christophe
9.1 --- Valpelline
10.0 --- Roisan
10.2 --- Torgnon
10.4 --- Doues
10.6 --- Chambave
10.7 --- Saint-Denis
10.8 --- Pollein
11.3 --- Ollomont
11.3 --- Gignod
11.9 --- Antey-Saint-Andre
12.2 --- Aosta

Quality location estimate: Erh: 1.4 km, Erz: 0.8 km, Nf: 18, Gap: 99 °, Rms: 0.40


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.
REMYGU2025-05-09 09:00:30.3650.01800.150.882025-05-09 09:00:33.1530.0832-0.530.9123.7
CIROGU2025-05-09 09:00:30.8130.02000.011.472025-05-09 09:00:33.9000.0762-0.681.1526.1
MRGEIV2025-05-09 09:00:31.7740.02000.550.012025-05-09 09:00:34.5490.0400-0.830.8230.5
DIXCH2025-05-09 09:00:31.5620.0200-0.081.042025-05-09 09:00:35.4110.0962-0.711.0931.9
LSDGU2025-05-09 09:00:33.7440.06020.021.382025-05-09 09:00:38.7320.1374-0.700.9845.9
MMKCH2025-05-09 09:00:34.4140.02000.121.152025-05-09 09:00:40.1500.1484-0.500.8649.7
EMBDCH2025-05-09 09:00:35.2420.0200-0.081.092025-05-09 09:00:41.5650.0400-0.810.8855.4
SIMPLCH2025-05-09 09:00:37.3640.02000.210.742025-05-09 09:00:44.9180.1002-0.610.9366.4


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
REMY GUHH0.193.01e-223.7280
CIRO GUHH0.382.09e-226.1156
MRGE IVHH0.151.44e-230.5263
LSD GUHH0.259.68e-345.9212
MMK CHHH0.284.70e-349.756
EMBD CHHH0.094.52e-355.433
SIMPLCHHH0.163.64e-366.443


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.
(°)
REMY GUHHZ3.3680e-62.8118e-71.4329e-74.1661e-82.3157e-84.6930e-68.0190e-73.6828e-86.8504e-923.7280
REMY GUHHN5.8174e-67.9830e-72.3542e-77.5404e-83.6248e-81.0736e-59.0997e-75.8812e-81.5751e-823.7280
REMY GUHHE3.7617e-64.8598e-71.5578e-77.4603e-83.2770e-87.3319e-66.1100e-74.4988e-81.0906e-823.7280
CIRO GUHHZ5.2192e-64.9628e-71.3226e-73.7832e-81.9754e-87.3868e-64.8716e-73.4600e-88.8510e-926.1156
CIRO GUHHN6.6719e-67.1366e-71.4329e-74.7474e-82.4811e-88.5493e-68.5396e-74.5692e-81.2450e-826.1156
CIRO GUHHE1.0355e-56.9560e-71.5387e-75.0703e-82.6001e-86.4700e-66.5766e-74.4508e-81.2009e-826.1156
MRGE IVHHZ2.2305e-61.9415e-74.7061e-82.8879e-81.2259e-81.3168e-62.1716e-71.5728e-83.3691e-930.5263
MRGE IVHHN3.9524e-63.7656e-79.0473e-84.5472e-81.9922e-86.5042e-63.5441e-73.2879e-87.1115e-930.5263
MRGE IVHHE2.9672e-62.8022e-77.0636e-83.7688e-81.7080e-83.3347e-63.3915e-72.4063e-84.3515e-930.5263
DIX CHHHZ1.0676e-51.4250e-66.3228e-72.1388e-71.1355e-72.7751e-53.5977e-61.7925e-73.2387e-831.9355
DIX CHHHN1.4355e-51.5347e-65.7988e-71.5013e-79.0958e-83.3357e-52.3508e-61.4820e-73.4103e-831.9355
DIX CHHHE2.0919e-53.1373e-61.0129e-62.6682e-71.6359e-74.6765e-53.9229e-62.5262e-76.2287e-831.9355
LSD GUHHZ1.9483e-62.0284e-77.8005e-82.1719e-81.1486e-82.5429e-62.7604e-71.9577e-83.9828e-945.9212
LSD GUHHN3.3748e-63.0000e-78.6160e-82.4142e-81.1629e-83.8804e-63.9175e-72.3244e-85.4087e-945.9212
LSD GUHHE3.7290e-62.9795e-77.3452e-82.0005e-81.0577e-82.6240e-63.6290e-71.7884e-85.0438e-945.9212
MMK CHHHZ7.5673e-77.8608e-84.4727e-81.8481e-87.7126e-91.5360e-62.5104e-71.1202e-81.7380e-949.756
MMK CHHHN7.1124e-77.5687e-84.2534e-81.4305e-88.4794e-91.3790e-62.6773e-71.1366e-81.9284e-949.756
MMK CHHHE9.3264e-78.4815e-83.4894e-81.8113e-89.6852e-98.9487e-71.8868e-71.3883e-82.0227e-949.756
EMBD CHHHZ6.3673e-71.0029e-75.0559e-82.4576e-81.2108e-81.3166e-62.8697e-71.7323e-82.3737e-955.433
EMBD CHHHN6.5415e-77.7697e-84.0600e-81.6285e-88.3288e-91.4657e-61.8937e-71.3972e-82.0039e-955.433
EMBD CHHHE6.9173e-76.5253e-83.6756e-81.3044e-86.6808e-97.3984e-72.4161e-78.7639e-91.5356e-955.433
SIMPLCHHHZ4.6600e-75.7178e-83.1212e-81.1373e-86.2874e-98.7302e-71.3173e-77.3586e-91.2858e-966.443
SIMPLCHHHN4.9186e-75.5563e-82.9266e-81.4151e-88.1716e-91.0393e-61.1994e-79.7846e-91.6798e-966.443
SIMPLCHHHE5.7326e-76.9016e-83.9273e-81.5112e-87.3916e-91.3922e-61.4866e-77.3192e-91.6408e-966.443
*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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