Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 28-09-2023 and time 02:36:59 (UTC) in region 3 km NW Vigolzone (PC)

A magnitude ML 2.4 earthquake occured in region: 3 km NW Vigolzone (PC), on

  • 28-09-2023 02:36:59 (UTC)
  • 28-09-2023 04:36:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.9360, 9.6570 at 9 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Vigolzone PC 3 4297 4297
Podenzano PC 3 9167 13464
Rivergaro PC 5 7005 20469
San Giorgio Piacentino PC 7 5792 26261
Ponte dell'Olio PC 8 4794 31055
Gossolengo PC 8 5637 36692
Gazzola PC 9 2056 38748
Agazzano PC 11 2096 40844
Carpaneto Piacentino PC 11 7715 48559
Gragnano Trebbiense PC 11 4554 53113
Travo PC 12 2087 55200
Pontenure PC 13 6512 61712
Piozzano PC 13 641 62353
Gropparello PC 13 2293 64646
Piacenza PC 13 102191 166837
Cadeo PC 16 6118 172955
Rottofreno PC 16 12127 185082
San Rocco al Porto LO 17 3536 188618
Calendasco PC 18 2514 191132
Bettola PC 18 2828 193960
Lugagnano Val d'Arda PC 18 4116 198076
Borgonovo Val Tidone PC 19 7892 205968
Sarmato PC 19 2879 208847
Castell'Arquato PC 19 4713 213560
Guardamiglio LO 20 2718 216278
Pianello Val Tidone PC 20 2202 218480
Fiorenzuola d'Arda PC 20 15297 233777

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km S of Piacenza (102191 inhabitants)
36 Km SW of Cremona (71901 inhabitants)
48 Km SE of Pavia (72576 inhabitants)
55 Km W of Parma (192836 inhabitants)
70 Km SE of Milano (1345851 inhabitants)
74 Km SE of Sesto San Giovanni (81608 inhabitants)
76 Km SE of Vigevano (63310 inhabitants)
78 Km SE of Cinisello Balsamo (75078 inhabitants)
78 Km SE of Monza (122671 inhabitants)
81 Km SW of Brescia (196480 inhabitants)
81 Km W of Reggio nell'Emilia (171345 inhabitants)
82 Km NE of Genova (586655 inhabitants)
82 Km SE of Rho (50434 inhabitants)
82 Km E of Alessandria (93943 inhabitants)
85 Km S of Bergamo (119381 inhabitants)
93 Km N of La Spezia (93959 inhabitants)
93 Km SE of Legnano (60262 inhabitants)
98 Km SE of Busto Arsizio (83106 inhabitants)
98 Km W of Carpi (70699 inhabitants)
99 Km SE of Novara (104380 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 2.4 2023-09-28
02:36:59		 44.9355 9.6567 9 2023-09-28
02:51:59		 Sala Sismica INGV-Roma 121530711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-28 02:36:59 ± 0.16
Latitude 44.9355 ± 0.0054
Longitude 9.6567 ± 0.0114
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121530711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 895
Semi-minor axis of confidence ellipse (meter) 310
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.26984
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 20
Magnitude information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 121530711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-28 02:51:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.LUSI.HHZ. 2023-09-28T02:37:39.43 3.0 undecidable manual S -1.33 0
ST.VARA.EHZ. 2023-09-28T02:37:38.23 3.0 undecidable manual S 0.48 0
IV.ROVR.HHZ. 2023-09-28T02:37:36.28 3.0 undecidable manual S -0.71 0
IV.VARE.HHE. 2023-09-28T02:37:35.95 0.6 undecidable manual S 327 124.3866 50 0.17 41
CH.MUGIO.HHE. 2023-09-28T02:37:35.23 0.6 undecidable manual S 337 119.4915 50 0.76 35
IV.BAG8.EHZ. 2023-09-28T02:37:33.32 0.1 undecidable manual S 32 116.8941 50 -0.48 79
IV.MAGA.HHZ. 2023-09-28T02:37:33.52 0.6 undecidable manual S -0.35 0.85
IV.VOBA.HNE. 2023-09-28T02:37:30.40 0.6 undecidable manual S 40 102.6195 50 0.42 41
IV.MDI.HHZ. 2023-09-28T02:37:27.86 0.6 undecidable manual S 3 92.6406 50 0.54 41
IV.SGAL.EHE. 2023-09-28T02:37:26.22 0.6 undecidable manual S 36 86.3469 50 0.57 40
IV.CNCS.EHE. 2023-09-28T02:37:25.64 0.6 undecidable manual S 30 86.247 50 0.02 46
IV.ERBM.EHE. 2023-09-28T02:37:25.03 0.6 undecidable manual S 134 82.6506 50 0.38 43
IV.PII.HHZ. 2023-09-28T02:37:23.83 3.0 negative manual P -0.59 0
SI.LUSI.HHZ. 2023-09-28T02:37:22.57 3.0 negative manual P -0.36 0
IV.MABI.HHZ. 2023-09-28T02:37:22.18 0.6 undecidable manual P 28 140.9478 50 -0.86 32
GU.POPM.HHZ. 2023-09-28T02:37:22.57 0.6 positive manual P 138 131.6682 50 0.96 31
ST.RONC.EHZ. 2023-09-28T02:37:22.02 0.6 undecidable manual P 33 138.1617 50 -0.59 36
IV.BDI.HHZ. 2023-09-28T02:37:20.58 0.6 undecidable manual P 142 121.989 50 0.46 39
IV.VARE.HHE. 2023-09-28T02:37:20.45 0.1 undecidable manual P 327 124.3866 50 -0.03 85
IV.ROVR.HHZ. 2023-09-28T02:37:20.03 3.0 undecidable manual Pn -0.78 0
CH.MUGIO.HHE. 2023-09-28T02:37:19.48 0.1 undecidable manual P 337 119.4915 50 -0.25 82
IV.BAG8.EHZ. 2023-09-28T02:37:18.55 0.1 positive manual P 32 116.8941 50 -0.79 70
IV.PRMA.HNZ. 2023-09-28T02:37:17.27 0.6 undecidable manual S 110 55.0005 50 -0.01 49
GU.GRAM.HHN. 2023-09-28T02:37:17.97 0.6 undecidable manual S 147 58.8966 50 -0.35 45
IV.SALO.HHZ. 2023-09-28T02:37:16.94 0.3 negative manual P 41 101.6205 50 -0.04 67
IV.VOBA.HNE. 2023-09-28T02:37:16.79 0.6 undecidable manual P 40 102.6195 50 -0.34 42
GU.GORR.HHZ. 2023-09-28T02:37:15.25 0.6 undecidable manual S 218 46.3203 50 0.29 47
IV.CNCS.EHE. 2023-09-28T02:37:15.18 0.3 undecidable manual P 30 86.247 50 0.56 61
IV.MDI.HHZ. 2023-09-28T02:37:15.79 0.6 positive manual P 3 92.6406 50 0.19 44
IV.SGAL.EHE. 2023-09-28T02:37:14.70 0.6 undecidable manual P 36 86.3469 50 0.07 46
IV.ERBM.EHE. 2023-09-28T02:37:13.54 0.6 undecidable manual P 134 82.6506 50 -0.52 42
GU.GRAM.HHN. 2023-09-28T02:37:09.85 0.6 undecidable manual P 147 58.8966 50 -0.55 43
IV.PRMA.HNZ. 2023-09-28T02:37:09.76 0.6 undecidable manual P 110 55.0005 50 -0.04 49
GU.GORR.HHZ. 2023-09-28T02:37:07.79 0.6 undecidable manual P 218 46.3203 50 -0.67 42
IV.CTL8.HNZ. 2023-09-28T02:37:07.74 0.6 undecidable manual P 12 38.7279 50 0.46 46
4P.IT07A.HHZ. 2023-09-28T02:37:06.37 0.3 undecidable manual S 116 15.6732 119 0.57 69
IV.PCN.EHZ. 2023-09-28T02:37:04.32 0.1 undecidable manual S 26 12.2766 125 -0.47 96
IV.PCN.EHZ. 2023-09-28T02:37:03.32 0.1 negative manual P 26 12.2766 125 0.73 87
4P.IT07A.HHZ. 2023-09-28T02:37:02.93 0.1 positive manual P 116 15.6732 119 -0.25 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
4P.IT07A.HHE. ML:2.6 0.0040750000000000005 0.2 AML other m 2023-09-28T02:37:07.02
4P.IT07A.HHN. ML:2.9 0.007005 0.22 AML other m 2023-09-28T02:37:07.00
IV.PCN.EHE. ML:2.1 0.001434893 0.32 AML other m 2023-09-28T02:37:08.49
IV.PCN.HNE. ML:2.1 0.001489211 0.32 AML other m 2023-09-28T02:37:08.49
IV.PCN.EHN. ML:2.7 0.00553 0.52 AML other m 2023-09-28T02:37:08.42
IV.PCN.HNN. ML:2.6 0.005285 0.5 AML other m 2023-09-28T02:37:08.42
IV.MDI.HHN. ML:0.0 0.00025601494999999994 0.2608 AML other m 2023-09-28T02:37:30.23
IV.SALO.HHN. ML:2.3 0.0001862247 0.2784 AML other m 2023-09-28T02:37:31.60
IV.MDI.HHE. ML:0.0 0.00018250464999999998 0.28 AML other m 2023-09-28T02:37:31.21
IV.SALO.HHE. ML:2.2 0.00015386639999999998 0.24 AML other m 2023-09-28T02:37:31.57
IV.BAG8.HNN. ML:2.8 0.00055022145 0.1696 AML other m 2023-09-28T02:37:34.16
IV.BAG8.EHN. ML:2.8 0.000554 0.16 AML other m 2023-09-28T02:37:34.17
IV.BAG8.HNE. ML:2.8 0.0004874074 0.1696 AML other m 2023-09-28T02:37:34.92
IV.BAG8.EHE. ML:2.8 0.000478079 0.1616 AML other m 2023-09-28T02:37:34.49
IV.ROVR.HHN. ML:2.6 0.0002604889 0.2208 AML other m 2023-09-28T02:37:38.18
IV.BDI.HHE. ML:2.1 0.00008255717500000001 0.3392 AML other m 2023-09-28T02:37:38.92
IV.ROVR.HHE. ML:2.3 0.00011995695 0.1792 AML other m 2023-09-28T02:37:39.17
IV.MABI.HHE. ML:2.2 0.00009090000000000001 0.36 AML other m 2023-09-28T02:37:39.63
IV.MABI.HHN. ML:2.0 0.00005965 0.9 AML other m 2023-09-28T02:37:39.38
ST.RONC.EHE. ML:2.6 0.0002229381 0.2 AML other m 2023-09-28T02:37:40.55
IV.BDI.HHN. ML:2.2 0.00012695 0.36 AML other m 2023-09-28T02:37:40.13
ST.RONC.EHN. ML:2.8 0.00037083149999999997 0.4384 AML other m 2023-09-28T02:37:40.96
GU.POPM.HHE. ML:2.1 0.00008124999999999998 1.3 AML other m 2023-09-28T02:37:41.17
GU.POPM.HHN. ML:2.2 0.000087968095 0.2208 AML other m 2023-09-28T02:37:42.47
IV.PII.HHE. ML:2.2 0.00009153966 0.5584 AML other m 2023-09-28T02:37:42.90
IV.PII.HHN. ML:2.2 0.0000775 0.4 AML other m 2023-09-28T02:37:43.76
IV.MDI.HNE. ML:2.2 0.0001830311 0.2704 AML other m 2023-09-28T02:37:31.22
IV.MDI.HNN. ML:3.3 0.0022139004999999997 0.92 AML other m 2023-09-28T02:37:41.46
IV.SALO.HNE. ML:2.3 0.00020501255000000002 0.7296 AML other m 2023-09-28T02:37:38.43
IV.SALO.HNN. ML:2.6 0.00035632805 0.5792 AML other m 2023-09-28T02:37:31.32
IV.ROVR.HNE. ML:2.4 0.0001526916 0.24 AML other m 2023-09-28T02:37:38.62
IV.ROVR.HNN. ML:2.7 0.00030158355000000004 0.36 AML other m 2023-09-28T02:37:38.56
IV.BDI.HNE. ML:2.2 0.00010433213499999999 0.7392 AML other m 2023-09-28T02:37:48.72
IV.BDI.HNN. ML:2.4 0.00016552488000000002 0.3696 AML other m 2023-09-28T02:37:40.14
ST.RONC.HNE. ML:2.7 0.00026888627 0.76 AML other m 2023-09-28T02:37:45.06
ST.RONC.HNN. ML:2.8 0.00037173409999999995 0.4 AML other m 2023-09-28T02:37:40.97
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download