Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 12-09-2024 and time 08:55:14 (Italy) in region 4 km SE San Benedetto Val di Sambro (BO)

A magnitude ML 1.8 earthquake occured in region: 4 km SE San Benedetto Val di Sambro (BO), on

  • 12-09-2024 06:55:14 (UTC)
  • 12-09-2024 08:55:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1800, 11.2490 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.

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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
San Benedetto Val di Sambro BO 4 4315 4315
Monghidoro BO 7 3749 8064
Castiglione dei Pepoli BO 9 5648 13712
Monzuno BO 11 6328 20040
Grizzana Morandi BO 12 3916 23956
Loiano BO 12 4294 28250
Firenzuola FI 12 4726 32976
Camugnano BO 13 1885 34861
Vernio PO 16 6060 40921
Vergato BO 16 7639 48560
Castel di Casio BO 17 3448 52008
Marzabotto BO 18 6779 58787
Barberino di Mugello FI 20 10836 69623

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NE of Prato (191150 inhabitants)
36 Km S of Bologna (386663 inhabitants)
38 Km NE of Pistoia (90315 inhabitants)
42 Km W of Imola (69797 inhabitants)
46 Km N of Firenze (382808 inhabitants)
47 Km N of Scandicci (50609 inhabitants)
52 Km W of Faenza (58541 inhabitants)
58 Km SE of Modena (184973 inhabitants)
63 Km W of Forlì (117913 inhabitants)
70 Km NE of Lucca (89046 inhabitants)
73 Km SE of Carpi (70699 inhabitants)
76 Km SE of Reggio nell'Emilia (171345 inhabitants)
79 Km SW of Ferrara (133155 inhabitants)
79 Km W of Cesena (96758 inhabitants)
80 Km W of Ravenna (159116 inhabitants)
85 Km NE of Pisa (89158 inhabitants)
87 Km E of Viareggio (62467 inhabitants)
90 Km E of Massa (69479 inhabitants)
93 Km E of Carrara (63133 inhabitants)
94 Km NW of Arezzo (99543 inhabitants)
96 Km N of Siena (53903 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 1.8 2024-09-12
06:55:14		 44.1798 11.2493 10 2024-09-12
07:03:00		 Sala Sismica INGV-Roma 131372841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-09-12 06:55:14 ± 0.12
Latitude 44.1798 ± 0.0072
Longitude 11.2493 ± 0.0113
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 131372841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 940
Semi-minor axis of confidence ellipse (meter) 719
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.50992
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 131372841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-09-12 07:03:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CIGN.HHZ. 2024-09-12T06:57:11.03 3.0 undecidable manual Sg 18.200001 0
IV.SPS2.HHZ. 2024-09-12T06:57:04.20 3.0 undecidable manual Pg 20.23 0
IV.PAOL.HNZ. 2024-09-12T06:57:03.08 3.0 undecidable manual Sn 2.87 0
GU.BHB.HHZ. 2024-09-12T06:56:48.99 3.0 undecidable manual Sg 14.89 0
MN.TRI.HHZ. 2024-09-12T06:56:27.02 3.0 undecidable manual Sg 6.84 0
SL.KOGS.BHZ. 2024-09-12T06:56:19.22 3.0 undecidable manual Pn 2.72 0
IV.BRMO.HHZ. 2024-09-12T06:56:17.95 3.0 undecidable manual Sn -2.78 0
ST.CARE.HNZ. 2024-09-12T06:56:17.04 3.0 undecidable manual Sn -1.29 0
GU.CIRO.HHZ. 2024-09-12T06:56:13.09 3.0 positive manual Pg 13.39 0
IV.PTRJ.HHZ. 2024-09-12T06:56:08.03 3.0 undecidable manual Pn -1.8 0
IV.CING.HHZ. 2024-09-12T06:56:02.98 3.0 undecidable manual Sn 0.55 0
ST.CARE.HNZ. 2024-09-12T06:55:58.55 3.0 undecidable manual Pg 8.41 0
IV.MCIV.CHZ. 2024-09-12T06:55:57.10 3.0 undecidable manual S -0.69 0
IV.SSFR.HHZ. 2024-09-12T06:55:53.90 0.1 positive manual P -1.52 0
IV.NARO.HHZ. 2024-09-12T06:55:53.61 0.3 negative manual P 3.51 0
IV.ATFO.HHZ. 2024-09-12T06:55:53.98 1.0 undecidable manual P 0.5 0
IV.FRON.EHZ. 2024-09-12T06:55:52.66 0.1 positive manual P -0.84 0
IV.PIEI.HHZ. 2024-09-12T06:55:52.15 3.0 undecidable manual S 1.73 0
GU.POPM.HHZ. 2024-09-12T06:55:28.58 0.6 undecidable manual S 249 42.0246 50 -0.07 48
IV.VMGN.HHZ. 2024-09-12T06:55:27.01 0.6 undecidable manual S 138 33.744 50 0.57 44
IV.PSL.EHZ. 2024-09-12T06:55:26.11 0.6 undecidable manual S 234 31.8459 50 0.16 48
IV.ZCCA.HHZ. 2024-09-12T06:55:26.03 0.3 undecidable manual S 311 28.749 50 0.9 58
IV.BOSL.HHN. 2024-09-12T06:55:25.55 0.6 undecidable manual S 160 29.3484 50 0.27 48
IV.SFI.EHZ. 2024-09-12T06:55:24.68 0.1 undecidable manual P 122 56.5989 50 -0.34 89
IV.RUFI.EHZ. 2024-09-12T06:55:22.80 0.6 negative manual P 151 43.2234 50 -0.16 47
IV.SEI.HHZ. 2024-09-12T06:55:22.17 0.6 undecidable manual S 148 16.4724 121 0.77 41
IV.MTRZ.HHZ. 2024-09-12T06:55:22.08 0.6 undecidable manual S 43 20.2686 116 -0.49 46
GU.POPM.HHZ. 2024-09-12T06:55:22.27 0.1 undecidable manual P 249 42.0246 50 -0.5 89
IV.VISG.HHZ. 2024-09-12T06:55:21.02 0.6 undecidable manual S 86 14.7741 124 0.12 50
IV.VMGN.HHZ. 2024-09-12T06:55:21.26 0.6 negative manual P 138 33.744 50 -0.23 48
IV.ZCCA.HHZ. 2024-09-12T06:55:20.83 0.1 positive manual P 311 28.749 50 0.09 99
IV.PSL.EHZ. 2024-09-12T06:55:20.88 0.1 undecidable manual P 234 31.8459 50 -0.33 94
IV.BOSL.HHN. 2024-09-12T06:55:20.72 0.1 undecidable manual P 160 29.3484 50 -0.1 99
IV.MTRZ.HHZ. 2024-09-12T06:55:19.48 0.1 positive manual P 43 20.2686 116 0.22 98
IV.VISG.HHZ. 2024-09-12T06:55:18.11 0.1 negative manual P 86 14.7741 124 -0.19 99
IV.SEI.HHZ. 2024-09-12T06:55:18.72 0.1 negative manual P 148 16.4724 121 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHE. ML:1.6 0.000365 0.34 AML other m 2024-09-12T06:55:21.10
IV.VISG.HHN. ML:1.4 0.0002565 0.52 AML other m 2024-09-12T06:55:21.14
IV.SEI.HHN. ML:2.2 0.0013599999999999999 0.4 AML other m 2024-09-12T06:55:22.47
IV.SEI.HHE. ML:1.9 0.0007855000000000001 0.46 AML other m 2024-09-12T06:55:22.69
IV.MTRZ.HHN. ML:1.8 0.000499 1.2 AML other m 2024-09-12T06:55:26.73
IV.MTRZ.HHE. ML:1.7 0.000397 0.82 AML other m 2024-09-12T06:55:28.06
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