Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 07-08-2022 and time 00:10:12 (Italy) in region 6 km W Castel del Rio (BO)

A magnitude ML 1.6 earthquake occured in region: 6 km W Castel del Rio (BO), on

  • 06-08-2022 22:10:12 (UTC)
  • 07-08-2022 00:10:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2050, 11.4360 at 10 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
Castel del Rio BO 6 1246 1246
Monghidoro BO 10 3749 4995
Firenzuola FI 11 4726 9721
Fontanelice BO 12 1943 11664
Loiano BO 12 4294 15958
Palazzuolo sul Senio FI 14 1154 17112
Monterenzio BO 14 6035 23147
Borgo Tossignano BO 15 3288 26435
Casola Valsenio RA 15 2617 29052
Monzuno BO 15 6328 35380
San Benedetto Val di Sambro BO 16 4315 39695
Casalfiumanese BO 18 3438 43133

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km SW of Imola (69797 inhabitants)
33 Km S of Bologna (386663 inhabitants)
37 Km W of Faenza (58541 inhabitants)
45 Km NE of Prato (191150 inhabitants)
48 Km W of Forlì (117913 inhabitants)
50 Km N of Firenze (382808 inhabitants)
51 Km NE of Pistoia (90315 inhabitants)
54 Km NE of Scandicci (50609 inhabitants)
64 Km SE of Modena (184973 inhabitants)
65 Km W of Cesena (96758 inhabitants)
65 Km W of Ravenna (159116 inhabitants)
72 Km S of Ferrara (133155 inhabitants)
78 Km SE of Carpi (70699 inhabitants)
84 Km SE of Reggio nell'Emilia (171345 inhabitants)
85 Km E of Lucca (89046 inhabitants)
90 Km NW of Arezzo (99543 inhabitants)
92 Km W of Rimini (147750 inhabitants)
99 Km N of Siena (53903 inhabitants)
99 Km NE of Pisa (89158 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 1.6 2022-08-06
22:10:12		 44.2047 11.4363 11 2023-01-31
19:03:32		 Bollettino Sismico Italiano INGV 108639231
Reviewed
Rev100 		ML 1.6 2022-08-06
22:10:12		 44.2083 11.4325 11 2022-08-06
22:15:02		 Sala Sismica INGV-Roma 108210131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-06 22:10:12 ± 0.08
Latitude 44.2047 ± 0.0054
Longitude 11.4363 ± 0.0088
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 108639231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 666
Semi-minor axis of confidence ellipse (meter) 604
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 298
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.01619
Epicentral distance of station farthest from the epicenter (degree) 0.42088
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 18
Type of magnitude ML
Reference to an origin 108639231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-01-16 16:04:35

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 108210131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-06 22:15:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FNVD.HHZ. 2022-08-06T22:10:22.00 0.3 undecidable manual S 261 25.2525 50 -0.16 72
IV.LMD.HHZ. 2022-08-06T22:10:22.67 0.6 undecidable manual S 123 25.752 50 0.38 46
IV.ZCCA.HHZ. 2022-08-06T22:10:21.19 0.3 undecidable manual P 294 39.9267 50 0.71 60
IV.SFI.EHZ. 2022-08-06T22:10:21.66 0.6 undecidable manual P 135 46.7199 50 0.14 46
IV.SEI.HHZ. 2022-08-06T22:10:20.17 0.3 undecidable manual S 200 17.7711 121 0.17 73
IV.MOCL.EHZ. 2022-08-06T22:10:18.98 0.3 undecidable manual P 223 30.0477 50 0.02 73
IV.IMOL.HNZ. 2022-08-06T22:10:18.91 0.6 undecidable manual P 55 29.748 50 0 49
IV.MTRZ.HHZ. 2022-08-06T22:10:18.67 0.3 undecidable manual S 356 11.9769 131 0.3 71
IV.BRIS.HHZ. 2022-08-06T22:10:18.31 0.3 undecidable manual P 85 26.3514 50 -0.07 73
IV.FNVD.HHZ. 2022-08-06T22:10:17.90 0.1 undecidable manual P 261 25.2525 50 -0.32 93
IV.LMD.HHZ. 2022-08-06T22:10:17.95 0.3 undecidable manual P 123 25.752 50 -0.34 69
IV.SEI.HHZ. 2022-08-06T22:10:17.07 0.1 undecidable manual P 200 17.7711 121 0.1 98
IV.VISG.HHZ. 2022-08-06T22:10:16.45 0.3 undecidable manual S 185 1.7982 171 -0.07 76
IV.MTRZ.HHZ. 2022-08-06T22:10:15.77 0.1 undecidable manual P 356 11.9769 131 -0.25 96
IV.VISG.HHZ. 2022-08-06T22:10:14.82 0.1 undecidable manual P 185 1.7982 171 -0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHN. ML:2.0 0.0017999999999999997 0.1 AML other m 2022-08-06T22:10:16.53
IV.VISG.HHE. ML:1.5 0.0006094999999999999 0.14 AML other m 2022-08-06T22:10:16.68
IV.IMOL.HNE. ML:2.3 0.000901 0.04 AML other m 2022-08-06T22:10:18.69
IV.IMOL.HNN. ML:2.3 0.0010335000000000001 0.04 AML other m 2022-08-06T22:10:18.69
IV.MTRZ.HHE. ML:1.3 0.0002345 1.6 AML other m 2022-08-06T22:10:19.12
IV.MTRZ.HNE. ML:1.8 0.0007070000000000001 1.06 AML other m 2022-08-06T22:10:19.90
IV.MTRZ.HHN. ML:1.9 0.0008480000000000001 0.4 AML other m 2022-08-06T22:10:20.32
IV.MTRZ.HNN. ML:1.9 0.0008095 1.16 AML other m 2022-08-06T22:10:20.32
IV.SEI.HHN. ML:1.7 0.00040849999999999995 0.24 AML other m 2022-08-06T22:10:22.54
IV.SEI.HHE. ML:1.4 0.00022600000000000002 1.26 AML other m 2022-08-06T22:10:22.29
IV.FNVD.HHN. ML:1.8 0.00040649999999999996 1 AML other m 2022-08-06T22:10:22.96
IV.FNVD.HHE. ML:1.5 0.00020050000000000002 0.98 AML other m 2022-08-06T22:10:23.51
IV.LMD.HHN. ML:1.0 0.000059999999999999995 0.8 AML other m 2022-08-06T22:10:23.14
IV.MOCL.EHN. ML:1.3 0.0000898 1.38 AML other m 2022-08-06T22:10:24.12
IV.MOCL.EHE. ML:1.5 0.00014150000000000002 0.56 AML other m 2022-08-06T22:10:24.85
IV.BRIS.HHN. ML:0.9 0.000045249999999999995 0.38 AML other m 2022-08-06T22:10:26.54
IV.BRIS.HHE. ML:0.9 0.0000415 0.54 AML other m 2022-08-06T22:10:26.54
IV.LMD.HHE. ML:0.9 0.00004725 0.72 AML other m 2022-08-06T22:10:28.85
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