AUTOMATIC Location - Area: Colline Metallifere , magnitude (ML): 1.9
2026-07-13 19:28:28 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-07-13 19:33:01

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Earthquake info - RsniPicker2 automatic location
Event - ID :260713192817
Magnitude (ML) :1.9 +/- 0.2
Origin Time :2026-07-13 19:28:28.4 (UTC)
Location : Latitude: 43.244 N, Longitude: 11.057 E
Area :Colline Metallifere
Depth (km) :10.96
Distances (km) : 2.3 --- Radicondoli (SI)
10.1 --- Chiusdino (SI)
11.1 --- Casole d Elsa (SI)
12.8 --- Castelnuovo di Val di Cecina (PI)
12.9 --- Montieri (GR)
14.5 --- Sovicille (SI)
15.3 --- Monticiano (SI)
16.1 --- Pomarance (PI)
19.5 --- Monterotondo Marittimo (GR)
20.8 --- Colle di Val d Elsa (SI)
21.5 --- Monteriggioni (SI)
23.7 --- Siena (SI)
23.9 --- Volterra (PI)
25.0 --- San Gimignano (SI)
25.3 --- Massa Marittima (GR)
26.4 --- Poggibonsi (SI)
27.4 --- Roccastrada (GR)
28.5 --- Murlo (SI)
28.7 --- Monteverdi Marittimo (PI)
29.7 --- Monteroni d Arbia (SI)

Quality location estimate:
Erh: 2.9 km, Erz: 2.4 km, Nf: 14, Gap: 221°, Rms: 0.176 s
Stazioni validate: 11


RsniPicker2 - Automatic location results
Station Net P arrival times P pick
err		 P pick
weight		 P res Nll
weight		 S arrival time S pick
err		 S pick
weight		 S res Nll
weight		 Dist.
CSNTIV2026-07-13 19:28:35.2090.02200.021.312026-07-13 19:28:39.8600.1012-0.151.2533.6
PIIIV2026-07-13 19:28:40.6890.0350-0.270.95--:---.-----.---.-- 69.2
MAIMGU2026-07-13 19:28:43.8600.0450-0.091.302026-07-13 19:28:54.7900.3122-0.210.8488.1
BDIIV2026-07-13 19:28:45.8600.0501-0.131.24--:---.-----.---.-- 98.8
CARDGU2026-07-13 19:28:45.9390.06910.111.12--:---.-----.---.-- 99.1
LMDIV2026-07-13 19:28:48.0900.0541-0.081.232026-07-13 19:29:02.5030.5063-0.340.61107.0
VLCMN2026-07-13 19:28:48.9800.05810.420.51--:---.-----.---.-- 115.7
SARMGU2026-07-13 19:28:49.2990.05910.380.59--:---.-----.---.-- 117.6
EQUIGU2026-07-13 19:28:50.2590.06410.141.05--:---.-----.---.-- 126.1
GSCLGU2026-07-13 19:28:51.3200.06510.051.14--:---.-----.---.-- 129.2
MORSIFR2026-07-13 19:28:51.4000.0711-0.310.88--:---.-----.---.-- 141.7


RsniPicker2 - Automatic magnitude (ML) calculation results
Station Net Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth Used
PII IV1.801.55e-169.2321SI
MAIM GU1.808.37e-288.1329SI
BDI IV1.604.94e-298.8338SI
CARD GU2.101.21e-199.1332SI
SARM GU2.007.24e-2117.6333SI
EQUI GU1.903.97e-2126.1325SI
GSCL GU2.208.09e-2129.2343SI
MORSIFR1.802.79e-2141.7257SI


Results of PGA, PGV, IH, spectral amplitudes (SA) values calculation
Station Net Channel PGA
(g)		 PGV
(m/s)		 PGD
(m)		 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.
(°)
PII IVHHZ3.6765e-67.2352e-70.0000e+07.6270e-71.3150e-61.6952e-69.0339e-64.4563e-61.6972e-72.3844e-869.2321
PII IVHHN3.9049e-61.2913e-60.0000e+01.3864e-62.2789e-62.2789e-69.5090e-61.2626e-53.6008e-73.6802e-869.2321
PII IVHHE4.3965e-61.5871e-60.0000e+01.3178e-62.3649e-63.1884e-61.1717e-59.9421e-62.8780e-73.6280e-869.2321
MAIM GUHHZ2.7310e-64.7683e-70.0000e+04.6686e-71.0011e-61.3069e-68.0435e-61.8387e-62.7492e-71.8599e-888.1329
MAIM GUHHN2.8003e-65.4983e-70.0000e+05.9016e-71.1840e-61.1840e-69.4593e-64.0525e-63.5365e-72.2469e-888.1329
MAIM GUHHE2.8972e-67.0588e-70.0000e+05.6580e-71.1827e-61.6502e-68.9395e-63.8840e-63.4786e-72.9572e-888.1329
BDI IVHHZ1.0778e-62.5793e-70.0000e+02.8319e-75.1613e-76.8158e-72.3195e-61.2909e-69.7583e-89.1499e-998.8338
BDI IVHHN1.0563e-63.5502e-70.0000e+03.0687e-75.8767e-75.8767e-73.6094e-61.2590e-61.8191e-71.2364e-898.8338
BDI IVHHE9.6674e-74.3236e-70.0000e+03.4434e-76.7120e-79.0404e-72.5239e-61.5977e-62.2312e-71.2172e-898.8338
CARD GUHHZ2.2937e-65.0500e-70.0000e+04.8324e-79.2329e-71.2142e-67.6079e-63.5646e-62.5485e-72.3527e-899.1332
CARD GUHHN4.9539e-61.1052e-60.0000e+01.0599e-61.8960e-61.8960e-61.9255e-57.0087e-67.3573e-74.4819e-899.1332
CARD GUHHE4.8688e-61.0727e-60.0000e+09.0244e-71.8743e-62.6095e-61.4706e-54.2882e-69.0580e-73.7982e-899.1332
VLC MNHHZ1.4895e-63.6304e-70.0000e+03.1587e-76.5645e-79.1446e-72.5691e-61.2613e-64.5616e-71.7940e-8115.7-1
VLC MNHHN1.3314e-62.6079e-70.0000e+02.4516e-75.4131e-75.4131e-72.9661e-61.2695e-63.8155e-71.6583e-8115.7-1
VLC MNHHE1.2861e-63.1877e-70.0000e+02.2591e-74.7669e-76.7235e-72.4173e-61.3109e-62.0873e-71.6402e-8115.7-1
SARM GUEHZ7.7328e-72.8458e-70.0000e+02.5925e-76.0759e-78.3215e-72.0517e-61.1298e-63.4940e-71.7476e-8117.6333
SARM GUEHN9.9428e-74.6566e-70.0000e+04.2362e-71.0266e-61.0266e-61.9641e-61.6799e-64.6309e-72.2660e-8117.6333
SARM GUEHE6.7973e-73.7708e-70.0000e+02.9999e-77.4922e-79.8260e-71.7037e-61.6829e-62.8875e-71.9228e-8117.6333
EQUI GUHHZ9.9362e-63.2029e-60.0000e+03.3965e-67.1538e-69.1057e-62.7305e-51.9712e-52.2437e-61.5925e-7126.1325
EQUI GUHHN1.3163e-53.4912e-60.0000e+03.1815e-67.1113e-67.1113e-66.2531e-51.9410e-52.9135e-61.4396e-7126.1325
EQUI GUHHE1.0902e-52.9558e-60.0000e+02.8960e-65.7439e-68.0372e-62.5072e-51.5322e-52.3232e-61.1532e-7126.1325
GSCL GUHHZ8.6105e-73.1823e-70.0000e+02.6020e-75.8864e-78.0323e-71.7061e-61.1514e-63.5710e-71.2210e-8129.2343
GSCL GUHHN1.3621e-65.6721e-70.0000e+03.4803e-77.1183e-77.1183e-71.8848e-61.5793e-62.7373e-71.5096e-8129.2343
GSCL GUHHE1.2116e-64.1237e-70.0000e+03.8217e-78.1164e-71.0864e-61.8687e-62.2452e-63.2579e-71.5075e-8129.2343
MORSIFRHHZ4.4015e-71.3658e-70.0000e+01.2030e-72.3210e-73.5176e-71.1981e-66.8625e-71.0778e-71.2282e-8141.7257
MORSIFRHHN3.3041e-71.1039e-70.0000e+01.0162e-71.9213e-71.9213e-79.8120e-75.2988e-71.0378e-75.6868e-9141.7257
MORSIFRHHE4.3180e-71.7217e-70.0000e+01.3105e-72.2325e-73.2426e-71.2883e-67.5027e-78.0983e-87.5204e-9141.7257
*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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