Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 04-03-2023 and time 09:57:55 (Italy) in region 1 km SW Guiglia (MO)

A magnitude ML 2.1 earthquake occured in region: 1 km SW Guiglia (MO), on

  • 04-03-2023 08:57:55 (UTC)
  • 04-03-2023 09:57:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.4200, 10.9520 at 48 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Guiglia MO 1 3931 3931
Marano sul Panaro MO 4 5060 8991
Vignola MO 8 25353 34344
Zocca MO 9 4719 39063
Castelvetro di Modena MO 9 11185 50248
Savignano sul Panaro MO 9 9177 59425
Pavullo nel Frignano MO 13 17383 76808
Serramazzoni MO 13 8282 85090
Maranello MO 14 17359 102449
Spilamberto MO 14 12621 115070
Valsamoggia BO 14 30561 145631
Castelnuovo Rangone MO 15 14896 160527
Castel d'Aiano BO 16 1906 162433
Montese MO 17 3353 165786
San Cesario sul Panaro MO 17 6407 172193
Fiorano Modenese MO 17 17160 189353
Sassuolo MO 19 40853 230206
Formigine MO 20 34323 264529
Vergato BO 20 7639 272168
Polinago MO 20 1672 273840

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km S of Modena (184973 inhabitants)
32 Km W of Bologna (386663 inhabitants)
40 Km SE of Reggio nell'Emilia (171345 inhabitants)
41 Km S of Carpi (70699 inhabitants)
54 Km N of Pistoia (90315 inhabitants)
61 Km N of Prato (191150 inhabitants)
61 Km W of Imola (69797 inhabitants)
65 Km SE of Parma (192836 inhabitants)
70 Km SW of Ferrara (133155 inhabitants)
73 Km NE of Lucca (89046 inhabitants)
76 Km W of Faenza (58541 inhabitants)
76 Km N of Scandicci (50609 inhabitants)
76 Km NW of Firenze (382808 inhabitants)
77 Km NE of Massa (69479 inhabitants)
78 Km E of Carrara (63133 inhabitants)
83 Km NE of Viareggio (62467 inhabitants)
89 Km W of Forlì (117913 inhabitants)
90 Km NE of Pisa (89158 inhabitants)
96 Km E of La Spezia (93959 inhabitants)
98 Km SW of Rovigo (51867 inhabitants)
99 Km W of Ravenna (159116 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
Bulletin
Rev1000 		ML 2.1 2023-03-04
08:57:55		 44.4203 10.9518 48 2024-03-01
17:18:12		 Bollettino Sismico Italiano INGV 118760571
Reviewed
Rev100 		ML 2.0 2023-03-04
08:57:56		 44.4323 10.9057 44 2023-03-04
09:04:50		 Sala Sismica INGV-Roma 114984521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-04 08:57:55 ± 0.16
Latitude 44.4203 ± 0.0063
Longitude 10.9518 ± 0.0126
Depth (km) 48 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118760571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1009
Semi-minor axis of confidence ellipse (meter) 57
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 264
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.69972
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 118760571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-20 14:49:25

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 114984521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-04 09:04:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLMA.HHZ. 2023-03-04T08:58:24.28 0.6 undecidable manual S 245 96.4257 101 0.21 44
IV.PII.HHZ. 2023-03-04T08:58:22.12 0.6 undecidable manual S 204 84.6486 103 0.55 41
IV.CTI.HHZ. 2023-03-04T08:58:21.42 1.0 undecidable manual P 17 188.6667 94 -2.11 6
IV.RUFI.EHZ. 2023-03-04T08:58:20.98 0.6 undecidable manual S 145 78.366 105 0.72 38
GU.GRAM.HHZ. 2023-03-04T08:58:19.19 0.6 undecidable manual S 277 70.6737 108 0.52 43
GU.EQUI.HHZ. 2023-03-04T08:58:18.57 1.0 undecidable manual S 246 69.375 109 0.16 23
IV.CRMI.HHZ. 2023-03-04T08:58:18.56 0.3 undecidable manual S 178 69.375 109 0.16 68
IV.RIBO.EHZ.01 2023-03-04T08:58:18.79 3.0 negative manual P -1.75 0
IV.MAGA.HHZ. 2023-03-04T08:58:18.40 1.0 undecidable manual P 351 152.4363 95 -0.64 17
IV.BOSL.HHZ. 2023-03-04T08:58:17.35 1.0 undecidable manual S 148 63.8916 111 0.06 23
GU.MAIM.HHZ. 2023-03-04T08:58:17.79 0.6 undecidable manual S 213 67.1772 110 -0.16 45
GU.CARD.HHZ. 2023-03-04T08:58:16.04 0.6 undecidable manual S 221 57.498 115 0.01 48
IV.MSSA.HHZ. 2023-03-04T08:58:15.51 3.0 negative manual P 1.12 0
IV.ROVR.HHZ. 2023-03-04T08:58:15.27 1.0 undecidable manual P 4 136.3635 96 -1.78 10
IV.MPPT.EHZ. 2023-03-04T08:58:15.63 0.6 undecidable manual S 168 52.503 118 0.56 42
IV.CAVE.HHZ. 2023-03-04T08:58:14.87 0.3 undecidable manual S 5 49.617 121 0.35 68
IV.BDI.HHZ. 2023-03-04T08:58:14.08 0.6 undecidable manual S 216 48.7179 121 -0.28 46
IV.ERBM.EHE. 2023-03-04T08:58:14.00 0.6 undecidable manual S 270 42.7239 126 0.71 42
GU.SARM.EHE. 2023-03-04T08:58:14.47 0.6 undecidable manual S 239 51.0156 120 -0.31 45
GU.POPM.HHZ. 2023-03-04T08:58:13.79 0.6 undecidable manual S 200 44.4222 125 0.2 48
IV.RAVA.EHN. 2023-03-04T08:58:13.13 1.0 undecidable manual S 19 39.5271 129 0.39 23
IV.PLMA.HHZ. 2023-03-04T08:58:12.56 0.1 undecidable manual P 245 96.4257 101 0.43 83
IV.FNVD.HHE. 2023-03-04T08:58:11.18 0.3 undecidable manual S 154 31.1466 138 -0.25 73
IV.PII.HHZ. 2023-03-04T08:58:11.33 0.6 undecidable manual P 204 84.6486 103 0.64 39
IV.MODE.HNN. 2023-03-04T08:58:10.67 1.0 undecidable manual S 359 23.2545 147 0.27 24
IV.RUFI.EHZ. 2023-03-04T08:58:10.00 0.6 undecidable manual P 145 78.366 105 0.06 46
GU.GSCL.HHZ. 2023-03-04T08:58:10.56 0.3 undecidable manual S 255 29.8479 140 -0.69 62
GU.GRAM.HHZ. 2023-03-04T08:58:09.47 0.3 undecidable manual P 277 70.6737 108 0.45 65
IV.ZCCA.HHZ. 2023-03-04T08:58:09.20 1.0 undecidable manual S 166 7.9809 168 0.05 26
GU.EQUI.HHZ. 2023-03-04T08:58:09.00 0.6 undecidable manual P 246 69.375 109 0.13 46
GU.MAIM.HHZ. 2023-03-04T08:58:08.32 0.3 undecidable manual P 213 67.1772 110 -0.28 67
IV.CRMI.HHZ. 2023-03-04T08:58:08.74 0.3 undecidable manual P 178 69.375 109 -0.12 69
IV.BOSL.HHZ. 2023-03-04T08:58:08.86 0.3 undecidable manual P 148 63.8916 111 0.64 60
GU.SARM.EHE. 2023-03-04T08:58:06.32 0.3 undecidable manual P 239 51.0156 120 -0.45 66
IV.CAVE.HHZ. 2023-03-04T08:58:06.44 0.3 undecidable manual P 5 49.617 121 -0.18 71
IV.MTRZ.HHZ. 2023-03-04T08:58:06.56 1.0 undecidable manual P 107 39.3273 130 0.98 18
GU.CARD.HHZ. 2023-03-04T08:58:06.91 0.3 undecidable manual P 221 57.498 115 -0.58 63
IV.BDI.HHZ. 2023-03-04T08:58:06.03 0.1 negative manual P 216 48.7179 121 -0.5 88
IV.MPPT.EHZ. 2023-03-04T08:58:06.94 0.1 undecidable manual P 168 52.503 118 0 97
IV.RAVA.EHN. 2023-03-04T08:58:05.80 1.0 undecidable manual P 19 39.5271 129 0.21 24
GU.POPM.HHZ. 2023-03-04T08:58:05.83 0.1 negative manual P 200 44.4222 125 -0.25 94
IV.ERBM.EHE. 2023-03-04T08:58:05.44 1.0 undecidable manual P 270 42.7239 126 -0.47 22
IV.MODE.HNN. 2023-03-04T08:58:04.24 1.0 undecidable manual P 359 23.2545 147 0 26
GU.GSCL.HHZ. 2023-03-04T08:58:04.19 0.3 undecidable manual P 255 29.8479 140 -0.55 67
IV.FNVD.HHE. 2023-03-04T08:58:04.38 0.3 undecidable manual P 154 31.1466 138 -0.46 69
IV.ZCCA.HHZ. 2023-03-04T08:58:03.76 0.1 positive manual P 166 7.9809 168 0.24 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ZCCA.HHE. ML:2.2 0.00039942875 0.4416 AML other m 2023-03-04T08:58:11.27
IV.ZCCA.HNE. ML:2.1 0.00035650000000000005 0.44 AML other m 2023-03-04T08:58:11.28
GU.GSCL.HHN. ML:1.8 0.00015388815 0.2624 AML other m 2023-03-04T08:58:11.05
IV.ZCCA.HHN. ML:2.2 0.00044684754999999997 0.6592 AML other m 2023-03-04T08:58:11.51
IV.ZCCA.HNN. ML:2.2 0.0004185 0.66 AML other m 2023-03-04T08:58:11.18
GU.GSCL.HHE. ML:1.8 0.00014367485 0.2432 AML other m 2023-03-04T08:58:12.22
IV.BDI.HHN. ML:1.9 0.00014000000000000001 0.38 AML other m 2023-03-04T08:58:14.62
IV.CAVE.HHE. ML:3.0 0.00198 0.44 AML other m 2023-03-04T08:58:15.53
IV.CAVE.HHN. ML:2.9 0.0013318549 0.1984 AML other m 2023-03-04T08:58:15.48
IV.BDI.HNN. ML:2.0 0.0001634427 0.4416 AML other m 2023-03-04T08:58:16.36
IV.BDI.HHE. ML:2.1 0.00020700000000000002 0.32 AML other m 2023-03-04T08:58:16.19
GU.POPM.HHN. ML:2.1 0.000254 0.36 AML other m 2023-03-04T08:58:16.44
GU.POPM.HHE. ML:2.1 0.000241 0.28 AML other m 2023-03-04T08:58:16.34
IV.MPPT.EHE. ML:2.1 0.0002162991 0.3776 AML other m 2023-03-04T08:58:16.68
IV.MPPT.EHN. ML:1.9 0.000134915495 0.32 AML other m 2023-03-04T08:58:16.85
GU.CARD.HHN. ML:2.3 0.00031649105 1.6416 AML other m 2023-03-04T08:58:16.12
IV.BDI.HNE. ML:2.1 0.0002117069 1.6736 AML other m 2023-03-04T08:58:17.98
GU.CARD.HHE. ML:2.2 0.0002256976 0.32 AML other m 2023-03-04T08:58:17.34
GU.MAIM.HHN. ML:1.7 0.00006766029999999999 0.4608 AML other m 2023-03-04T08:58:18.34
IV.CRMI.HHE. ML:1.2 0.00002247741 0.4032 AML other m 2023-03-04T08:58:18.00
GU.MAIM.HHE. ML:1.6 0.000059785000000000004 0.4352 AML other m 2023-03-04T08:58:18.74
IV.BOSL.HHE. ML:1.5 0.0000395 1.4 AML other m 2023-03-04T08:58:19.19
IV.CRMI.HHN. ML:1.5 0.000045703485 0.2368 AML other m 2023-03-04T08:58:19.21
GU.GRAM.HHE. ML:2.3 0.0002505 0.28 AML other m 2023-03-04T08:58:20.25
IV.BOSL.HHN. ML:1.5 0.00003985 0.42 AML other m 2023-03-04T08:58:20.64
GU.GRAM.HHN. ML:2.2 0.00020150000000000002 0.5 AML other m 2023-03-04T08:58:21.17
GU.EQUI.HHE. ML:1.7 0.00005935 0.7 AML other m 2023-03-04T08:58:21.34
GU.EQUI.HHN. ML:1.7 0.00006644480999999999 0.3392 AML other m 2023-03-04T08:58:22.34
IV.PII.HHE. ML:2.3 0.00021799999999999999 0.26 AML other m 2023-03-04T08:58:22.45
IV.PII.HHN. ML:2.1 0.00014000000000000001 0.22 AML other m 2023-03-04T08:58:24.15
IV.PLMA.HHE. ML:1.9 0.00007295 1.06 AML other m 2023-03-04T08:58:25.15
IV.PLMA.HHN. ML:2.0 0.00008365 0.8 AML other m 2023-03-04T08:58:26.27
IV.RIBO.EHN.01 ML:3.0 0.00038229000000000003 0.6 AML other m 2023-03-04T08:58:26.14
IV.RIBO.EHE.01 ML:2.8 0.00023099999999999998 1 AML other m 2023-03-04T08:58:27.18
IV.CRMI.HNE. ML:2.1 0.00015053364 0.864 AML other m 2023-03-04T08:58:29.54
IV.CRMI.HNN. ML:2.3 0.0002528777 0.9408 AML other m 2023-03-04T08:58:37.49
IV.ROVR.HHN. ML:2.6 0.0002285 1 AML other m 2023-03-04T08:58:40.79
IV.ROVR.HHE. ML:2.3 0.00011465000000000001 1.14 AML other m 2023-03-04T08:58:40.22
IV.CTI.HHE. ML:2.6 0.00012164999999999999 0.48 AML other m 2023-03-04T08:58:52.93
IV.CTI.HHN. ML:2.5 0.00009635 0.2 AML other m 2023-03-04T08:58:54.59
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