MANUAL Location - Area: Alpi Pennine , magnitude (ML): 0.5
2025-09-29 08:02:33 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-09-29 13:05:00

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Earthquake info - Manual location
Event - ID :250929080055
Magnitude (ML) :0.5 +/- 0.2
Origin Time :2025-09-29 08:02:33.288 (UTC)
Location : Latitude: 45.968 N, Longitude: 7.531 E
Area :Alpi Pennine
Depth (km) :4.27
Distances (km) : 12.3 --- Valtournenche
13.2 --- Bionaz
15.8 --- Chamois
17.2 --- Oyace
18.5 --- Torgnon
18.6 --- Antey-Saint-Andre
18.7 --- La Magdeleine
21.1 --- Ayas
21.5 --- Ollomont
22.4 --- Valpelline
22.8 --- Verrayes
23.9 --- Doues
23.9 --- Saint-Denis
24.6 --- Chambave
25.1 --- Chatillon
25.6 --- Saint-Vincent
25.6 --- Nus
25.8 --- Pontey
25.9 --- Fenis
26.3 --- Roisan

Quality location estimate: Erh: 1 km, Erz: 0.9 km, Nf: 22, Gap: 65 °, Rms: 0.25


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.
DIXCH2025-09-29 08:02:37.1900.0090-0.012.002025-09-29 08:02:39.3320.0591-0.480.8617.3
VANNICH2025-09-29 08:02:39.2800.02000.430.442025-09-29 08:02:42.5030.0400-0.031.6428.0
SATIGU2025-09-29 08:02:39.0400.0381-0.370.782025-09-29 08:02:42.4180.1484-1.200.1528.9
REMYGU2025-09-29 08:02:40.0100.01600.001.922025-09-29 08:02:44.2530.1002-0.400.8633.1
MMKCH2025-09-29 08:02:40.4910.02000.350.472025-09-29 08:02:44.1280.1002-0.600.6835.3
EMBDCH2025-09-29 08:02:40.4650.01800.011.892025-09-29 08:02:44.6850.1103-0.520.7936.5
CIROGU2025-09-29 08:02:41.3060.02000.011.822025-09-29 08:02:45.9900.1625-1.010.2741.3
MRGEIV2025-09-29 08:02:41.5510.02110.021.782025-09-29 08:02:46.6100.3127-0.760.5642.9
LSDGU2025-09-29 08:02:45.2610.06020.390.512025-09-29 08:02:52.3800.2196-0.600.7064.7
RSLFR2025-09-29 08:02:48.7020.02001.440.002025-09-29 08:02:56.8390.0400-0.231.0976.8


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
DIX CHHH0.882.63e-117.3322
VANNICHHH0.494.34e-228.011
SATI GUHH0.532.57e-228.9111
REMY GUHH0.503.29e-233.1244
MMK CHHH0.248.56e-335.374
EMBD CHHH0.211.37e-236.540
CIRO GUHH0.347.82e-341.3176
MRGE IVHH0.491.65e-242.9239
LSD GUHH0.581.01e-264.7209


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.
(°)
DIX CHHHZ2.2446e-52.3472e-61.2820e-64.4841e-71.7853e-74.0408e-55.5535e-62.3948e-74.5274e-817.3322
DIX CHHHN2.2948e-52.7536e-62.2234e-66.8910e-73.1723e-72.8934e-51.1837e-54.8232e-78.1897e-817.3322
DIX CHHHE1.8297e-52.1811e-61.3487e-65.2748e-71.8286e-72.6692e-55.2019e-62.8049e-75.1397e-817.3322
VANNICHHHZ2.9336e-62.6093e-71.9769e-76.2138e-82.7710e-84.1176e-61.1698e-64.0202e-86.9421e-928.011
VANNICHHHN2.0645e-63.8544e-73.6196e-71.2499e-74.9616e-83.5200e-62.5937e-67.0027e-89.6216e-928.011
VANNICHHHE1.9831e-64.1873e-73.4946e-71.6076e-76.4273e-84.0136e-62.5625e-68.8434e-81.3038e-828.011
SATI GUHHZ3.5314e-63.5221e-71.2652e-74.4657e-82.0254e-85.0862e-66.3403e-73.4918e-87.2404e-928.9111
SATI GUHHN5.7773e-65.8825e-72.2367e-77.2509e-83.0389e-88.7486e-69.2839e-74.8412e-81.2158e-828.9111
SATI GUHHE4.7561e-66.4767e-72.1388e-78.4245e-83.9776e-81.6095e-57.9471e-75.2851e-81.1947e-828.9111
REMY GUHHZ3.1474e-63.6992e-71.9885e-77.9948e-83.6002e-84.3385e-61.2419e-65.8790e-81.0392e-833.1244
REMY GUHHN4.7945e-65.6375e-72.8778e-71.1420e-75.4282e-81.1576e-51.4270e-67.9499e-81.2302e-833.1244
REMY GUHHE3.7734e-64.8428e-73.1200e-71.2075e-75.1426e-81.1339e-51.2931e-66.9759e-81.1400e-833.1244
MMK CHHHZ1.3649e-61.6218e-77.7023e-82.7068e-81.2033e-82.4173e-63.8374e-71.5880e-83.6455e-935.374
MMK CHHHN1.0869e-61.2812e-77.8421e-82.3734e-81.0585e-83.0545e-63.9987e-71.6145e-83.0600e-935.374
MMK CHHHE1.2941e-61.2063e-75.5856e-82.0981e-88.9592e-91.7968e-62.9010e-71.4003e-82.7261e-935.374
EMBD CHHHZ1.6599e-62.7793e-71.3029e-75.6165e-82.1277e-82.6271e-68.2034e-72.9638e-85.5069e-936.540
EMBD CHHHN1.1818e-62.2673e-71.2685e-75.3719e-82.2737e-83.7750e-68.2753e-72.9374e-85.0581e-936.540
EMBD CHHHE1.8061e-61.9607e-71.2357e-75.7843e-82.4639e-82.4791e-66.3444e-73.3899e-85.0388e-936.540
CIRO GUHHZ9.4226e-71.1305e-76.3368e-82.6280e-81.0750e-81.5877e-64.6667e-71.5723e-82.7022e-941.3176
CIRO GUHHN1.3723e-61.2513e-75.4038e-82.6408e-81.1445e-81.7406e-62.6237e-71.3948e-82.3325e-941.3176
CIRO GUHHE1.0663e-61.4712e-77.8018e-82.1378e-81.0106e-82.0557e-64.4436e-71.5641e-82.8328e-941.3176
MRGE IVHHZ1.4659e-61.4955e-77.7883e-82.8105e-81.3685e-82.8036e-63.6864e-72.1967e-83.3935e-942.9239
MRGE IVHHN3.2365e-63.5802e-71.3457e-74.0787e-81.9891e-84.9110e-68.0278e-73.8691e-87.5228e-942.9239
MRGE IVHHE1.9571e-62.9753e-71.1320e-75.0670e-82.2446e-82.9777e-65.0338e-73.2908e-87.0758e-942.9239
LSD GUHHZ1.3294e-61.4447e-77.2405e-83.2345e-81.3044e-83.3086e-63.0243e-71.9289e-83.2522e-964.7209
LSD GUHHN9.1857e-71.1761e-76.5184e-82.3501e-81.0360e-82.0419e-64.7366e-71.6254e-82.3712e-964.7209
LSD GUHHE1.4110e-61.9388e-71.0619e-73.5215e-81.5887e-82.5281e-65.2977e-72.3714e-84.1585e-964.7209
*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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