MANUAL Location - Area: Alpi Pennine , magnitude (ML): 0.3
2025-04-26 19:50:58 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-04-28 07:29:04

20 km
Lat : Lon
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Earthquake info - Manual location
Event - ID :250426194923
Magnitude (ML) :0.3 +/- 0.1
Origin Time :2025-04-26 19:50:58.89 (UTC)
Location : Latitude: 45.805 N, Longitude: 7.491 E
Area :Alpi Pennine
Depth (km) :5.77
Distances (km) : 5.6 --- Verrayes
6.1 --- Torgnon
7.3 --- Nus
7.6 --- Saint-Denis
7.7 --- Fenis
7.8 --- Antey-Saint-Andre
7.8 --- Chambave
8.9 --- Saint-Marcel
9.1 --- Quart
9.4 --- Bionaz
9.8 --- La Magdeleine
10.0 --- Oyace
10.7 --- Pontey
10.8 --- Chamois
10.9 --- Brissogne
11.3 --- Chatillon
12.2 --- Saint-Christophe
13.0 --- Valtournenche
13.1 --- Valpelline
13.5 --- Saint-Vincent

Quality location estimate: Erh: 1.6 km, Erz: 1.3 km, Nf: 24, Gap: 90 °, Rms: 0.28


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.
CIROGU2025-04-26 19:51:04.0800.0110-0.001.952025-04-26 19:51:07.0900.0601-0.600.6424.7
SATIGU2025-04-26 19:51:05.3200.02000.011.922025-04-26 19:51:09.8850.0400-0.051.6431.5
DIXCH2025-04-26 19:51:04.8010.0200-0.510.542025-04-26 19:51:08.5000.0400-1.360.0832.4
MRGEIV2025-04-26 19:51:04.6820.0200-0.720.432025-04-26 19:51:08.0420.0400-2.010.0634.4
VANNICH2025-04-26 19:51:07.2680.02000.021.842025-04-26 19:51:13.1780.04000.031.5746.3
MMKCH2025-04-26 19:51:07.7480.02000.420.182025-04-26 19:51:13.3080.04000.011.5746.4
LSDGU2025-04-26 19:51:07.0600.0201-0.560.642025-04-26 19:51:11.8600.1143-1.730.1148.0
EMBDCH2025-04-26 19:51:08.7510.02000.181.112025-04-26 19:51:14.7070.0400-0.670.5353.2
LATOIV2025-04-26 19:51:09.0380.02000.041.752025-04-26 19:51:15.7350.0400-0.011.4756.4
SENINCH2025-04-26 19:51:10.3770.0200-0.141.232025-04-26 19:51:17.6170.3938-1.150.2764.3
FIESACH2025-04-26 19:51:13.7660.0200-0.111.342025-04-26 19:51:24.7100.04000.260.8885.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
CIRO GUHH0.301.90e-224.7165
MRGE IVHH0.291.61e-234.4264
VANNICHHH0.157.62e-346.310
MMK CHHH0.194.38e-346.453
LSD GUHH0.371.16e-248.0216
SENINCHHH0.295.31e-364.3347
FIESACHHH0.595.62e-385.134


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.
(°)
CIRO GUHHZ2.7405e-63.0933e-71.1064e-73.3375e-81.8213e-86.0527e-64.0181e-73.0532e-86.5090e-924.7165
CIRO GUHHN5.4155e-64.9736e-71.3684e-74.6744e-82.0318e-87.0282e-67.7060e-73.7338e-88.3044e-924.7165
CIRO GUHHE4.2440e-64.9019e-71.6197e-75.3546e-83.2083e-86.1370e-67.1472e-74.7532e-88.1672e-924.7165
SATI GUHHZ9.7606e-71.0067e-73.4488e-81.0293e-86.0628e-91.4854e-61.3040e-71.0671e-82.2310e-931.575
SATI GUHHN2.4549e-62.4810e-75.2765e-81.6734e-88.9321e-93.5668e-61.6861e-71.8674e-84.6464e-931.575
SATI GUHHE1.7580e-61.7432e-75.9326e-81.6961e-89.9195e-93.2643e-62.0964e-71.8113e-83.6120e-931.575
DIX CHHHZ1.8146e-51.9891e-67.7254e-72.8264e-71.4664e-74.6958e-53.6331e-62.3898e-74.1373e-832.4348
DIX CHHHN2.7413e-52.6420e-66.0069e-71.9118e-71.1035e-72.6504e-52.1322e-62.1052e-75.7306e-832.4348
DIX CHHHE3.1876e-52.9921e-61.1184e-63.0693e-71.8288e-75.4305e-55.0487e-63.2447e-77.4844e-832.4348
MRGE IVHHZ2.9667e-62.5206e-74.2783e-81.7610e-87.5145e-91.3326e-61.6389e-71.3982e-84.3815e-934.4264
MRGE IVHHN4.4261e-65.0954e-78.7589e-82.7830e-81.6267e-87.4702e-64.0939e-73.4116e-81.0450e-834.4264
MRGE IVHHE4.8108e-64.0484e-75.6854e-81.9419e-81.2065e-83.9350e-62.2967e-72.5851e-87.3533e-934.4264
VANNICHHHZ5.9993e-76.5320e-83.8717e-81.8051e-87.2433e-99.2989e-71.5348e-71.1028e-81.4515e-946.310
VANNICHHHN7.9219e-78.4945e-84.8948e-82.7870e-81.0048e-81.4346e-62.9674e-71.2091e-82.3626e-946.310
VANNICHHHE1.0548e-69.9593e-85.9480e-83.3554e-81.4020e-89.7920e-72.6568e-72.0719e-82.4020e-946.310
MMK CHHHZ5.7693e-77.3149e-83.5777e-81.3602e-85.5787e-91.4282e-61.3900e-79.7565e-91.4913e-946.453
MMK CHHHN5.8686e-77.3631e-84.4393e-81.2237e-87.1496e-91.7464e-61.7152e-71.2310e-82.0632e-946.453
MMK CHHHE5.8160e-75.8142e-82.5115e-81.2128e-85.6342e-97.6790e-78.8242e-88.7066e-91.2233e-946.453
LSD GUHHZ2.0946e-62.4184e-78.1228e-82.2198e-81.0586e-83.3105e-62.7692e-71.9824e-84.5627e-948.0216
LSD GUHHN2.7267e-62.3881e-77.7555e-82.0778e-89.3557e-93.0722e-63.8859e-71.8574e-84.6688e-948.0216
LSD GUHHE3.0409e-63.0484e-79.6122e-82.0849e-81.0878e-83.6126e-64.2920e-72.3087e-85.4910e-948.0216
EMBD CHHHZ6.4574e-78.6627e-85.4715e-82.9905e-81.2351e-81.1333e-62.8918e-71.5903e-82.6300e-953.230
EMBD CHHHN6.8379e-79.8292e-84.1093e-81.6483e-88.2831e-91.6882e-61.5451e-71.0180e-81.8479e-953.230
EMBD CHHHE4.9040e-75.6367e-83.4460e-81.5293e-87.9040e-98.0370e-71.7302e-71.0325e-81.3385e-953.230
SENINCHHHZ3.5553e-77.2429e-86.2330e-82.7101e-81.4482e-81.5845e-63.3582e-72.0576e-82.5674e-964.3347
SENINCHHHN3.3596e-75.4931e-84.4785e-82.3665e-81.1801e-89.6731e-71.9244e-71.6454e-82.0359e-964.3347
SENINCHHHE3.9042e-75.6562e-84.4936e-81.8707e-81.0886e-81.4095e-62.3249e-71.6745e-81.6238e-964.3347
FIESACHHHZ2.1889e-74.3341e-83.3478e-82.9389e-82.1727e-84.9426e-72.3898e-72.9375e-81.7931e-985.134
FIESACHHHN2.8465e-76.5833e-84.6962e-82.3555e-81.9666e-89.6851e-72.9971e-72.7127e-82.3501e-985.134
FIESACHHHE2.4621e-74.6769e-83.7024e-82.9084e-81.9248e-85.5742e-72.5511e-72.7915e-81.9945e-985.134
*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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