Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 01-10-2023 and time 03:14:23 (Italy) in region 6 km N Castel di Casio (BO)

A magnitude ML 1.3 earthquake occured in region: 6 km N Castel di Casio (BO), on

  • 01-10-2023 01:14:23 (UTC)
  • 01-10-2023 03:14:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2150, 11.0290 at 10 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castel di Casio BO 6 3448 3448
Camugnano BO 7 1885 5333
Gaggio Montano BO 8 4878 10211
Castel d'Aiano BO 8 1906 12117
Alto Reno Terme BO 8 6960 19077
Montese MO 9 3353 22430
Vergato BO 10 7639 30069
Grizzana Morandi BO 11 3916 33985
Lizzano in Belvedere BO 12 2212 36197
Sambuca Pistoiese PT 12 1626 37823
Castiglione dei Pepoli BO 13 5648 43471
Zocca MO 15 4719 48190
San Benedetto Val di Sambro BO 16 4315 52505
Fanano MO 19 2989 55494
Marzabotto BO 20 6779 62273

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km N of Pistoia (90315 inhabitants)
37 Km N of Prato (191150 inhabitants)
40 Km SW of Bologna (386663 inhabitants)
49 Km S of Modena (184973 inhabitants)
52 Km N of Scandicci (50609 inhabitants)
53 Km NW of Firenze (382808 inhabitants)
57 Km W of Imola (69797 inhabitants)
59 Km NE of Lucca (89046 inhabitants)
62 Km SE of Reggio nell'Emilia (171345 inhabitants)
64 Km S of Carpi (70699 inhabitants)
69 Km W of Faenza (58541 inhabitants)
73 Km NE of Viareggio (62467 inhabitants)
73 Km E of Massa (69479 inhabitants)
75 Km NE of Pisa (89158 inhabitants)
76 Km E of Carrara (63133 inhabitants)
81 Km W of Forlì (117913 inhabitants)
84 Km SW of Ferrara (133155 inhabitants)
86 Km SE of Parma (192836 inhabitants)
94 Km NE of Livorno (159219 inhabitants)
96 Km W of Ravenna (159116 inhabitants)
97 Km E of La Spezia (93959 inhabitants)
97 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
Reviewed
Rev100 		ML 1.3 2023-10-01
01:14:23		 44.2147 11.0293 10 2023-10-01
01:21:11		 Sala Sismica INGV-Roma 121633411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-01 01:14:23 ± 0.05
Latitude 44.2147 ± 0.0036
Longitude 11.0293 ± 0.0050
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121633411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 459
Semi-minor axis of confidence ellipse (meter) 298
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 45
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.46405
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 121633411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-01 01:21:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PII.HHZ. 2023-10-01T01:14:35.57 3.0 negative manual P -0.52 0
IV.MPPT.EHZ. 2023-10-01T01:14:34.22 0.6 undecidable manual S 170 28.9488 50 0.25 47
IV.MOCL.EHZ. 2023-10-01T01:14:33.32 0.6 undecidable manual S 153 26.1516 50 0.07 49
MN.VLC.HHZ. 2023-10-01T01:14:33.07 0.6 undecidable manual P 263 51.5151 50 -0.02 47
IV.PSL.EHZ. 2023-10-01T01:14:32.86 0.6 undecidable manual S 199 24.1536 50 0.15 48
GU.GSCL.HHN. 2023-10-01T01:14:31.12 0.6 undecidable manual P 293 38.1285 50 0.09 48
IV.BDI.HHZ. 2023-10-01T01:14:30.81 0.6 positive manual P 244 38.4282 50 -0.26 46
IV.ZCCA.HHZ. 2023-10-01T01:14:30.56 0.6 undecidable manual S 345 15.6732 124 0.37 47
IV.VISG.HHZ. 2023-10-01T01:14:30.02 0.6 undecidable manual P 95 32.3454 50 -0.12 48
IV.MTRZ.HHZ. 2023-10-01T01:14:30.39 0.6 undecidable manual P 71 33.2445 50 0.11 48
IV.SEI.HHZ. 2023-10-01T01:14:29.88 0.1 positive manual P 124 31.6461 50 -0.15 95
GU.POPM.HHZ. 2023-10-01T01:14:29.47 0.1 undecidable manual P 229 28.749 50 -0.11 97
IV.MOCL.EHZ. 2023-10-01T01:14:29.22 0.1 positive manual P 153 26.1516 50 0.03 99
IV.MPPT.EHZ. 2023-10-01T01:14:29.67 0.1 positive manual P 170 28.9488 50 0.06 98
IV.PSL.EHZ. 2023-10-01T01:14:28.89 0.1 positive manual P 199 24.1536 50 0.01 99
IV.FNVD.HHZ. 2023-10-01T01:14:28.51 0.3 undecidable manual S 125 9.0798 139 0.06 76
IV.ZCCA.HHZ. 2023-10-01T01:14:27.29 0.3 positive manual P 345 15.6732 124 -0.13 74
IV.FNVD.HHZ. 2023-10-01T01:14:26.31 0.1 positive manual P 125 9.0798 139 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FNVD.HHN. ML:0.8 0.00008285246 0.16 AML other m 2023-10-01T01:14:28.91
IV.FNVD.HHE. ML:1.0 0.00013920655 0.16 AML other m 2023-10-01T01:14:28.54
IV.ZCCA.HHE. ML:0.0 0.0001254027 0.44 AML other m 2023-10-01T01:14:32.82
IV.ZCCA.HHN. ML:0.0 0.00010205365499999999 0.32 AML other m 2023-10-01T01:14:33.35
IV.MOCL.EHN. ML:1.4 0.0001565 0.14 AML other m 2023-10-01T01:14:34.16
IV.MOCL.EHE. ML:1.6 0.00021992155 0.18 AML other m 2023-10-01T01:14:34.14
IV.MPPT.EHN. ML:1.1 0.00006709999999999999 0.16 AML other m 2023-10-01T01:14:34.90
IV.MPPT.EHE. ML:1.4 0.00013350000000000002 1.5 AML other m 2023-10-01T01:14:35.83
IV.SEI.HHN. ML:1.2 0.00008122481000000001 0.2 AML other m 2023-10-01T01:14:36.10
IV.BDI.HHN. ML:1.6 0.00014074694999999997 0.22 AML other m 2023-10-01T01:14:36.89
IV.SEI.HHE. ML:1.2 0.0000739 1.7 AML other m 2023-10-01T01:14:37.03
IV.BDI.HHE. ML:1.4 0.00008904097 0.28 AML other m 2023-10-01T01:14:37.16
IV.ZCCA.HNE. ML:1.2 0.00014860394999999997 0.32 AML other m 2023-10-01T01:14:31.71
IV.ZCCA.HNN. ML:0.7 0.00005116074 0.3304 AML other m 2023-10-01T01:14:30.69
IV.PSL.EHE. ML:1.0 0.0000657875225 0.18 AML other m 2023-10-01T01:14:32.99
IV.PSL.EHN. ML:1.3 0.00011309636500000001 0.22 AML other m 2023-10-01T01:14:33.10
IV.BDI.HNE. ML:1.5 0.0001138149 0.7696 AML other m 2023-10-01T01:14:41.32
IV.BDI.HNN. ML:1.9 0.0003147508 0.52 AML other m 2023-10-01T01:14:36.58
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