Earthquake with magnitude of ML 1.6 on date 12-09-2023 and time 15:41:36 (Italy) in region 1 km SW Alluvioni Cambiò (AL)
A magnitude ML 1.6 earthquake occured in region: 1 km SW Alluvioni Cambiò (AL), on
- 12-09-2023 13:41:36 (UTC)
- 12-09-2023 15:41:36 (UTC +02:00) Italian time
and geographic coordinates (lat, lon) 44.9910, 8.7700 at 45 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
Search earthquakes: Any within 30 km radius
The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.
Display location by
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Municipalities within 20 km from the epicenter
Distances are determinated based on the geographic coordintes of the (Istat).
| Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
|---|---|---|---|---|
| Alluvioni Cambiò | AL | 1 | 912 | 912 |
| Bassignana | AL | 3 | 1709 | 2621 |
| Sale | AL | 3 | 4172 | 6793 |
| Piovera | AL | 4 | 851 | 7644 |
| Gambarana | PV | 4 | 225 | 7869 |
| Rivarone | AL | 4 | 381 | 8250 |
| Suardi | PV | 5 | 624 | 8874 |
| Guazzora | AL | 7 | 305 | 9179 |
| Pieve del Cairo | PV | 7 | 2063 | 11242 |
| Isola Sant'Antonio | AL | 8 | 717 | 11959 |
| Pecetto di Valenza | AL | 8 | 1267 | 13226 |
| Montecastello | AL | 8 | 321 | 13547 |
| Castelnuovo Scrivia | AL | 9 | 5274 | 18821 |
| Alzano Scrivia | AL | 9 | 377 | 19198 |
| Pietra Marazzi | AL | 9 | 904 | 20102 |
| Frascarolo | PV | 9 | 1209 | 21311 |
| Mezzana Bigli | PV | 10 | 1098 | 22409 |
| Valenza | AL | 10 | 19178 | 41587 |
| Molino dei Torti | AL | 10 | 605 | 42192 |
| Torre Beretti e Castellaro | PV | 11 | 567 | 42759 |
| Villa Biscossi | PV | 11 | 78 | 42837 |
| Mede | PV | 12 | 6693 | 49530 |
| Galliavola | PV | 13 | 211 | 49741 |
| Casei Gerola | PV | 13 | 2500 | 52241 |
| Cornale e Bastida | PV | 13 | 867 | 53108 |
| Tortona | AL | 13 | 27437 | 80545 |
| Pontecurone | AL | 14 | 3723 | 84268 |
| Lomello | PV | 15 | 2206 | 86474 |
| Alessandria | AL | 15 | 93943 | 180417 |
| Silvano Pietra | PV | 15 | 672 | 181089 |
| Viguzzolo | AL | 15 | 3148 | 184237 |
| Bozzole | AL | 16 | 319 | 184556 |
| Ferrera Erbognone | PV | 16 | 1189 | 185745 |
| San Salvatore Monferrato | AL | 16 | 4299 | 190044 |
| Pomaro Monferrato | AL | 16 | 355 | 190399 |
| Castelletto Monferrato | AL | 16 | 1537 | 191936 |
| Sartirana Lomellina | PV | 16 | 1657 | 193593 |
| Sannazzaro de' Burgondi | PV | 17 | 5515 | 199108 |
| Semiana | PV | 17 | 231 | 199339 |
| Castellar Guidobono | AL | 17 | 399 | 199738 |
| Carbonara Scrivia | AL | 18 | 1122 | 200860 |
| Giarole | AL | 18 | 718 | 201578 |
| Corana | PV | 18 | 812 | 202390 |
| Sarezzano | AL | 18 | 1171 | 203561 |
| Villaromagnano | AL | 18 | 715 | 204276 |
| Frugarolo | AL | 18 | 1968 | 206244 |
| Volpeglino | AL | 18 | 148 | 206392 |
| Scaldasole | PV | 19 | 938 | 207330 |
| Ottobiano | PV | 19 | 1090 | 208420 |
| Voghera | PV | 19 | 39421 | 247841 |
| Casalnoceto | AL | 19 | 980 | 248821 |
| Spineto Scrivia | AL | 19 | 337 | 249158 |
| Breme | PV | 19 | 800 | 249958 |
| Berzano di Tortona | AL | 19 | 157 | 250115 |
| Valmacca | AL | 19 | 1021 | 251136 |
| Valeggio | PV | 19 | 217 | 251353 |
| Valle Lomellina | PV | 19 | 2197 | 253550 |
| Velezzo Lomellina | PV | 19 | 95 | 253645 |
Municipalities with at least 50000 inhabitants
An earthquake occurred to
15 Km NE of Alessandria (93943 inhabitants)
37 Km S of Vigevano (63310 inhabitants)
38 Km SW of Pavia (72576 inhabitants)
46 Km E of Asti (76202 inhabitants)
52 Km S of Novara (104380 inhabitants)
62 Km SW of Milano (1345851 inhabitants)
64 Km SW of Rho (50434 inhabitants)
66 Km N of Genova (586655 inhabitants)
68 Km S of Legnano (60262 inhabitants)
70 Km S of Busto Arsizio (83106 inhabitants)
71 Km SW of Sesto San Giovanni (81608 inhabitants)
72 Km SW of Cinisello Balsamo (75078 inhabitants)
73 Km W of Piacenza (102191 inhabitants)
75 Km S of Gallarate (53343 inhabitants)
77 Km SW of Monza (122671 inhabitants)
79 Km NE of Savona (61345 inhabitants)
85 Km E of Moncalieri (57294 inhabitants)
86 Km E of Torino (890529 inhabitants)
92 Km S of Varese (80799 inhabitants)
94 Km S of Como (84495 inhabitants)
Recent and historical seismicity
Not available maps for this sismic event.
Seismic hazard
Not available maps for this sismic event.
Shakemap
Not available maps for this sismic event.
Felt maps
Not available maps for this sismic event.
Locations history
| Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
|---|---|---|---|---|---|---|---|---|
|
Reviewed Rev100 |
ML 1.6 | 2023-09-12 13:41:36 |
44.9913 | 8.7702 | 45 | 2023-09-12 13:56:58 |
Sala Sismica INGV-Roma | 121002461 |
Preferred location and magnitude until now.
Origin information
Origin
| Field | Value |
|---|---|
| Time (UTC) | 2023-09-12 13:41:36 ± 0.22 |
| Latitude | 44.9913 ± 0.0090 |
| Longitude | 8.7702 ± 0.0203 |
| Depth (km) | 45 ± 4 (from location) |
| Evaluation mode of Origin | manual |
| Evaluation status of Origin | reviewed |
| Version | 100 -> SURVEY-INGV |
| Event type | earthquake |
| Origin ID | 121002461 |
Uncertainty
| Field | Value |
|---|---|
| Preferred uncertainty description | uncertainty ellipse |
| Semi-major axis of confidence ellipse (meter) | 1497 |
| Semi-minor axis of confidence ellipse (meter) | 698 |
| Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 243 |
| Circular confidence region, given by single value of horizontal uncertainty (meter) | 1500.0 |
| Confidence level of the uncertainty (%) | 68 |
Quality
| Field | Value |
|---|---|
| Largest azimuthal gap in station distribution as seen from epicenter (degree) | 125 |
| Number of associated phases, regardless of their use for origin computation | 49 |
| Number of defining phases | 19 |
| RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.34 |
| Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
| Epicentral distance of station farthest from the epicenter (degree) | 1.24286 |
| Number of stations at which the event was observed | 39 |
| Number of stations from which data was used for origin computation | 11 |
Magnitude information
ML:1.6
| Field | Value |
|---|---|
| Value | 1.6 |
| Uncertainty | 0.3 |
| Num. used stations | 24 |
| Type of magnitude | ML |
| Reference to an origin | 121002461 |
| Agency | INGV |
| Autore | Sala Sismica INGV-Roma |
| Time of creation (UTC) | 2023-09-12 13:56:58 |
Picking and Arrival
| SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
|---|---|---|---|---|---|---|---|---|---|---|
| IV.BSSO.HHZ. | 2023-09-12T13:44:02.94 | 3.0 | undecidable | manual | Sn | -1.73 | 0 | |||
| IY.CIRK.HHZ.00 | 2023-09-12T13:44:00.53 | 3.0 | negative | manual | Pg | 20.040001 | 0 | |||
| 7C.SPAOL.HNZ. | 2023-09-12T13:43:46.69 | 3.0 | undecidable | manual | Pn | -0.85 | 0 | |||
| IV.GMB1.HHZ. | 2023-09-12T13:43:43.26 | 3.0 | undecidable | manual | Pn | -1.5 | 0 | |||
| IV.GUMA.HHZ. | 2023-09-12T13:43:43.37 | 3.0 | undecidable | manual | Sg | 19.629999 | 0 | |||
| IV.PIPA.HHZ. | 2023-09-12T13:43:34.25 | 3.0 | undecidable | manual | Pn | -3.45 | 0 | |||
| SL.LJU.BHZ. | 2023-09-12T13:43:29.62 | 3.0 | undecidable | manual | Sn | 0.3 | 0 | |||
| IV.SPS2.HHZ. | 2023-09-12T13:43:27.99 | 3.0 | positive | manual | Pn | -8.19 | 0 | |||
| IV.MCRV.HHZ. | 2023-09-12T13:43:26.06 | 3.0 | undecidable | manual | Pg | 13.31 | 0 | |||
| GE.MATE.HHZ. | 2023-09-12T13:43:26.25 | 3.0 | undecidable | manual | Pn | 0.35 | 0 | |||
| IV.SMA1.EHZ. | 2023-09-12T13:43:24.91 | 3.0 | undecidable | manual | Sn | -5.1 | 0 | |||
| IV.ARVD.HHZ. | 2023-09-12T13:43:24.86 | 3.0 | undecidable | manual | Sg | 12.72 | 0 | |||
| IV.SACS.HHZ. | 2023-09-12T13:43:16.84 | 3.0 | undecidable | manual | Sg | 9.47 | 0 | |||
| IV.FRON.EHZ. | 2023-09-12T13:43:12.46 | 3.0 | undecidable | manual | Sg | 3.88 | 0 | |||
| IV.PTRJ.HHZ. | 2023-09-12T13:43:05.21 | 3.0 | undecidable | manual | Pn | 2.81 | 0 | |||
| IV.RIBO.EHZ. | 2023-09-12T13:42:58.99 | 3.0 | undecidable | manual | Sg | 3.57 | 0 | |||
| IV.VAGA.HHZ. | 2023-09-12T13:42:51.00 | 3.0 | positive | manual | Pn | -8.72 | 0 | |||
| IV.CTI.HHZ. | 2023-09-12T13:42:50.76 | 3.0 | undecidable | manual | Sg | 8.83 | 0 | |||
| IV.PIEI.HHZ. | 2023-09-12T13:42:36.41 | 3.0 | undecidable | manual | Pg | 8.48 | 0 | |||
| IV.LNSS.HHZ. | 2023-09-12T13:42:30.58 | 3.0 | undecidable | manual | Pn | -9.08 | 0 | |||
| SI.LUSI.HHZ. | 2023-09-12T13:42:24.42 | 3.0 | undecidable | manual | Sn | -5.6 | 0 | |||
| IV.CTI.HHZ. | 2023-09-12T13:42:23.58 | 3.0 | undecidable | manual | Pg | 8.87 | 0 | |||
| OX.AGOR.HHZ. | 2023-09-12T13:42:20.37 | 3.0 | undecidable | manual | Pn | 0.92 | 0 | |||
| IV.MABI.HHZ. | 2023-09-12T13:42:20.61 | 3.0 | undecidable | manual | Sn | -4.14 | 0 | |||
| GU.MGRO.HHZ. | 2023-09-12T13:42:18.93 | 3.0 | undecidable | manual | Sg | 0.69 | 0 | |||
| GU.CIRO.HHZ. | 2023-09-12T13:42:08.09 | 0.6 | undecidable | manual | S | 306 | 115.6953 | 96 | -0.74 | 42 |
| IV.MDI.HHZ. | 2023-09-12T13:42:06.64 | 3.0 | undecidable | manual | Sn | -2.98 | 0 | |||
| CH.MUGIO.HHZ. | 2023-09-12T13:42:05.85 | 0.6 | undecidable | manual | S | 11 | 105.4167 | 97 | -0.76 | 43 |
| GU.TRAV.HHZ. | 2023-09-12T13:42:05.46 | 0.6 | undecidable | manual | S | 306 | 98.6235 | 97 | 0.28 | 50 |
| IV.VARE.HHZ. | 2023-09-12T13:42:05.35 | 0.6 | undecidable | manual | S | 360 | 97.2249 | 98 | 0.48 | 47 |
| GU.MGRO.HHZ. | 2023-09-12T13:42:03.46 | 3.0 | undecidable | manual | Pg | 2.06 | 0 | |||
| GU.BHB.HHZ. | 2023-09-12T13:42:02.37 | 3.0 | negative | manual | Pg | 4.28 | 0 | |||
| CH.DIX.HHZ. | 2023-09-12T13:42:01.21 | 3.0 | positive | manual | Pn | 0.34 | 0 | |||
| 4P.IT02A.HHZ. | 2023-09-12T13:42:00.91 | 0.6 | undecidable | manual | S | 336 | 76.9674 | 102 | 0.35 | 51 |
| GU.ENR.HHZ. | 2023-09-12T13:41:58.01 | 0.6 | undecidable | manual | P | 232 | 136.1637 | 94 | 0.28 | 47 |
| GU.GORR.HHZ. | 2023-09-12T13:41:57.14 | 0.3 | undecidable | manual | S | 136 | 59.1963 | 109 | 0.27 | 81 |
| GU.LSD.HHZ. | 2023-09-12T13:41:57.54 | 1.0 | undecidable | manual | P | 293 | 137.9619 | 94 | -0.42 | 22 |
| GU.RNCA.HHE. | 2023-09-12T13:41:56.36 | 0.6 | undecidable | manual | S | 166 | 59.3961 | 109 | -0.56 | 49 |
| GU.IT07A.HHZ. | 2023-09-12T13:41:55.27 | 3.0 | undecidable | manual | P | 0 | ||||
| GU.PCP.HHZ. | 2023-09-12T13:41:55.70 | 0.3 | undecidable | manual | S | 200 | 52.9026 | 114 | 0.08 | 86 |
| GU.CIRO.HHZ. | 2023-09-12T13:41:54.44 | 0.1 | undecidable | manual | P | 306 | 115.6953 | 96 | -0.75 | 83 |
| IV.VARE.HHZ. | 2023-09-12T13:41:53.15 | 0.3 | undecidable | manual | P | 360 | 97.2249 | 98 | 0.24 | 75 |
| CH.MUGIO.HHZ. | 2023-09-12T13:41:53.85 | 0.6 | undecidable | manual | P | 11 | 105.4167 | 97 | -0.07 | 52 |
| GU.CANO.HHE. | 2023-09-12T13:41:53.56 | 0.6 | undecidable | manual | P | 206 | 96.6255 | 98 | 0.73 | 44 |
| GU.TRAV.HHZ. | 2023-09-12T13:41:52.73 | 0.3 | undecidable | manual | P | 306 | 98.6235 | 97 | -0.36 | 74 |
| 4P.IT02A.HHZ. | 2023-09-12T13:41:50.87 | 0.1 | undecidable | manual | P | 336 | 76.9674 | 102 | 0.45 | 100 |
| GU.RNCA.HHE. | 2023-09-12T13:41:48.12 | 0.3 | undecidable | manual | P | 166 | 59.3961 | 109 | -0.2 | 82 |
| GU.GORR.HHZ. | 2023-09-12T13:41:48.20 | 0.3 | undecidable | manual | P | 136 | 59.1963 | 109 | -0.09 | 84 |
| GU.PCP.HHZ. | 2023-09-12T13:41:47.86 | 0.3 | undecidable | manual | P | 200 | 52.9026 | 114 | 0.29 | 82 |
Station Magnitude and Amplitude
| SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
|---|---|---|---|---|---|---|---|
| GU.PCP.HHN. | ML:1.5 | 0.000051099999999999995 | 0.14 | AML | other | m | 2023-09-12T13:41:56.39 |
| GU.PCP.HHE. | ML:1.6 | 0.00006994999999999999 | 0.8 | AML | other | m | 2023-09-12T13:41:56.08 |
| GU.GORR.HHE. | ML:1.6 | 0.00005599999999999999 | 1.36 | AML | other | m | 2023-09-12T13:41:57.25 |
| GU.GORR.HHN. | ML:1.6 | 0.00005255 | 1.62 | AML | other | m | 2023-09-12T13:41:58.01 |
| 4P.IT02A.HHN. | ML:1.7 | 0.000060700000000000005 | 0.42 | AML | other | m | 2023-09-12T13:42:01.73 |
| 4P.IT02A.HHE. | ML:1.8 | 0.00007615 | 0.46 | AML | other | m | 2023-09-12T13:42:02.37 |
| IV.VARE.HHE. | ML:1.6 | 0.00003625000000000001 | 1.52 | AML | other | m | 2023-09-12T13:42:06.91 |
| IV.VARE.HHN. | ML:1.6 | 0.0000374 | 0.44 | AML | other | m | 2023-09-12T13:42:06.32 |
| GU.TRAV.HHE. | ML:2.0 | 0.00008795 | 0.16 | AML | other | m | 2023-09-12T13:42:07.05 |
| CH.MUGIO.HHE. | ML:1.4 | 0.00002065 | 0.42 | AML | other | m | 2023-09-12T13:42:07.57 |
| GU.TRAV.HHN. | ML:1.8 | 0.0000538 | 0.58 | AML | other | m | 2023-09-12T13:42:08.42 |
| CH.MUGIO.HHN. | ML:1.4 | 0.000020799999999999997 | 0.18 | AML | other | m | 2023-09-12T13:42:08.35 |
| GU.CIRO.HHN. | ML:1.4 | 0.00002175 | 0.46 | AML | other | m | 2023-09-12T13:42:11.24 |
| GU.CIRO.HHE. | ML:1.4 | 0.00002245 | 0.7 | AML | other | m | 2023-09-12T13:42:11.13 |
| GU.ENR.HHN. | ML:1.6 | 0.0000241 | 1.28 | AML | other | m | 2023-09-12T13:42:14.92 |
| GU.ENR.HHE. | ML:1.6 | 0.000025349999999999996 | 0.08 | AML | other | m | 2023-09-12T13:42:18.13 |
| GU.LSD.HHE. | ML:1.3 | 0.00001021 | 0.16 | AML | other | m | 2023-09-12T13:42:18.72 |
| GU.LSD.HHN. | ML:1.3 | 0.000011099999999999999 | 1.02 | AML | other | m | 2023-09-12T13:42:19.44 |
| SI.LUSI.HHE. | ML:2.0 | 0.00002305 | 1.04 | AML | other | m | 2023-09-12T13:42:26.96 |
| IV.MABI.HHN. | ML:1.2 | 0.000007205 | 0.36 | AML | other | m | 2023-09-12T13:42:30.93 |
| IV.MABI.HHE. | ML:1.2 | 0.0000056050000000000005 | 0.44 | AML | other | m | 2023-09-12T13:42:33.72 |
| SI.LUSI.HHN. | ML:2.0 | 0.0000324 | 0.66 | AML | other | m | 2023-09-12T13:42:37.89 |
| IV.CTI.HHE. | ML:2.7 | 0.00007994999999999999 | 0.08 | AML | other | m | 2023-09-12T13:42:44.24 |
| IV.CTI.HHN. | ML:2.7 | 0.00008175000000000001 | 0.38 | AML | other | m | 2023-09-12T13:43:01.83 |
TDMT - Time Domain Moment Tensor
Not available TDMT solution for this seismic event.
Fault Plane solutions in the area
Not available maps for this sismic event.