Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 29-01-2023 and time 04:05:18 (Italy) in region 6 km NW Vergato (BO)

A magnitude ML 1.2 earthquake occured in region: 6 km NW Vergato (BO), on

  • 29-01-2023 03:05:18 (UTC)
  • 29-01-2023 04:05:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3240, 11.0700 at 15 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
Vergato BO 6 7639 7639
Zocca MO 6 4719 12358
Castel d'Aiano BO 7 1906 14264
Grizzana Morandi BO 10 3916 18180
Marzabotto BO 11 6779 24959
Montese MO 12 3353 28312
Guiglia MO 15 3931 32243
Sasso Marconi BO 16 14735 46978
Monzuno BO 17 6328 53306
Marano sul Panaro MO 17 5060 58366
Camugnano BO 17 1885 60251
Gaggio Montano BO 17 4878 65129
San Benedetto Val di Sambro BO 18 4315 69444
Savignano sul Panaro MO 18 9177 78621
Castel di Casio BO 18 3448 82069
Vignola MO 18 25353 107422
Monte San Pietro BO 18 10982 118404
Pavullo nel Frignano MO 19 17383 135787
Alto Reno Terme BO 20 6960 142747

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SW of Bologna (386663 inhabitants)
38 Km SE of Modena (184973 inhabitants)
45 Km N of Pistoia (90315 inhabitants)
49 Km N of Prato (191150 inhabitants)
51 Km W of Imola (69797 inhabitants)
53 Km S of Carpi (70699 inhabitants)
54 Km SE of Reggio nell'Emilia (171345 inhabitants)
63 Km N of Firenze (382808 inhabitants)
63 Km N of Scandicci (50609 inhabitants)
65 Km W of Faenza (58541 inhabitants)
70 Km NE of Lucca (89046 inhabitants)
72 Km SW of Ferrara (133155 inhabitants)
78 Km W of Forlì (117913 inhabitants)
79 Km SE of Parma (192836 inhabitants)
81 Km E of Massa (69479 inhabitants)
82 Km E of Carrara (63133 inhabitants)
83 Km NE of Viareggio (62467 inhabitants)
86 Km NE of Pisa (89158 inhabitants)
90 Km W of Ravenna (159116 inhabitants)
96 Km W of Cesena (96758 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 1.2 2023-01-29
03:05:18		 44.3235 11.0702 15 2024-03-01
17:17:55		 Bollettino Sismico Italiano INGV 114435981
Reviewed
Rev100 		ML 1.1 2023-01-29
03:05:18		 44.3125 11.0547 14 2023-01-29
03:25:08		 Sala Sismica INGV-Roma 113871241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-29 03:05:18 ± 0.19
Latitude 44.3235 ± 0.0108
Longitude 11.0702 ± 0.0088
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 114435981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1061
Semi-minor axis of confidence ellipse (meter) 699
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 15
Circular confidence region, given by single value of horizontal uncertainty (meter) 1060.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 186
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
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) 0.07195
Epicentral distance of station farthest from the epicenter (degree) 0.51891
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 114435981
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-10 14:09:25

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 7
Type of magnitude ML
Reference to an origin 113871241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-29 03:25:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VMGN.HHN. 2023-01-29T03:05:37.08 0.3 undecidable manual S 138 55.1004 95 1.13 50
GU.SARM.EHN. 2023-01-29T03:05:36.36 0.6 undecidable manual S 254 55.4001 95 0.33 45
GU.CARD.HHZ. 2023-01-29T03:05:36.50 0.3 undecidable manual S 235 57.1983 95 -0.03 71
IV.BOSL.HHE. 2023-01-29T03:05:34.83 0.3 undecidable manual S 151 49.8168 96 0.27 69
IV.BDI.HHZ. 2023-01-29T03:05:33.76 0.3 undecidable manual S 233 47.5191 96 -0.19 70
GU.GSCL.HHN. 2023-01-29T03:05:31.80 0.3 undecidable manual S 275 38.3283 98 0.28 70
IV.SEI.HHZ. 2023-01-29T03:05:31.57 0.6 undecidable manual S 142 37.629 98 0.24 47
GU.POPM.HHZ. 2023-01-29T03:05:31.31 0.3 undecidable manual S 219 39.7269 98 -0.56 65
GU.CARD.HHZ. 2023-01-29T03:05:29.32 0.3 undecidable manual P 235 57.1983 95 0.31 67
IV.LMD.HHE. 2023-01-29T03:05:28.74 0.3 undecidable manual P 118 57.5979 95 -0.32 67
GU.SARM.EHN. 2023-01-29T03:05:28.82 0.3 undecidable manual P 254 55.4001 95 0.09 70
IV.VMGN.HHN. 2023-01-29T03:05:28.89 0.3 undecidable manual P 138 55.1004 95 0.21 69
IV.BDI.HHZ. 2023-01-29T03:05:27.18 0.3 undecidable manual P 233 47.5191 96 -0.35 68
IV.BOSL.HHE. 2023-01-29T03:05:27.81 0.1 undecidable manual P 151 49.8168 96 -0.07 95
GU.GSCL.HHN. 2023-01-29T03:05:26.26 0.3 undecidable manual P 275 38.3283 98 0.14 72
IV.FNVD.HHZ. 2023-01-29T03:05:26.46 0.6 undecidable manual S 166 17.7711 117 0.24 49
IV.SEI.HHZ. 2023-01-29T03:05:25.86 0.3 undecidable manual P 142 37.629 98 -0.15 72
GU.POPM.HHZ. 2023-01-29T03:05:25.99 0.1 undecidable manual P 219 39.7269 98 -0.33 92
IV.ZCCA.HHZ. 2023-01-29T03:05:24.48 0.3 undecidable manual S 292 7.9809 145 0.26 74
IV.FNVD.HHZ. 2023-01-29T03:05:22.56 0.3 undecidable manual P 166 17.7711 117 -0.5 69
IV.ZCCA.HHZ. 2023-01-29T03:05:21.69 0.1 negative manual P 292 7.9809 145 -0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ZCCA.HHE. ML:1.1 0.0001325 0.42 AML other m 2023-01-29T03:05:24.61
IV.ZCCA.HHN. ML:1.1 0.000129 1.58 AML other m 2023-01-29T03:05:25.04
GU.POPM.HHE. ML:1.3 0.00006805 0.42 AML other m 2023-01-29T03:05:31.68
GU.POPM.HHN. ML:1.4 0.00008245 1.32 AML other m 2023-01-29T03:05:31.91
IV.BDI.HHN. ML:1.2 0.0000412 0.58 AML other m 2023-01-29T03:05:34.24
IV.BDI.HHE. ML:1.2 0.0000375 0.54 AML other m 2023-01-29T03:05:35.02
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