Earthquake 6 km SW Castel del Rio (BO), Magnitude ML 2.0, 29 January 2023 time 07:29:16 (Timezone UTC)

A magnitude ML 2.0 earthquake occured in region: 6 km SW Castel del Rio (BO), on

29-01-2023 07:29:16 (UTC)
29-01-2023 08:29:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1680, 11.4570 at 20 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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Display location by

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).

Municipality	Region	Distance (km)	Inhabitants	Cumulative Inhabitants
Castel del Rio	BO	6	1246	1246
Firenzuola	FI	8	4726	5972
Palazzuolo sul Senio	FI	10	1154	7126
Monghidoro	BO	13	3749	10875
Fontanelice	BO	13	1943	12818
Casola Valsenio	RA	15	2617	15435
Loiano	BO	16	4294	19729
Marradi	FI	16	3139	22868
Borgo Tossignano	BO	16	3288	26156
Monterenzio	BO	18	6035	32191
San Benedetto Val di Sambro	BO	19	4315	36506
Monzuno	BO	19	6328	42834
Casalfiumanese	BO	19	3438	46272

Municipalities with at least 50000 inhabitants

An earthquake occurred to

29 Km SW of Imola (69797 inhabitants)

37 Km W of Faenza (58541 inhabitants)

38 Km S of Bologna (386663 inhabitants)

43 Km NE of Prato (191150 inhabitants)

47 Km W of Forlì (117913 inhabitants)

47 Km NE of Firenze (382808 inhabitants)

50 Km NE of Pistoia (90315 inhabitants)

51 Km NE of Scandicci (50609 inhabitants)

63 Km W of Cesena (96758 inhabitants)

65 Km W of Ravenna (159116 inhabitants)

68 Km SE of Modena (184973 inhabitants)

76 Km S of Ferrara (133155 inhabitants)

82 Km SE of Carpi (70699 inhabitants)

84 Km E of Lucca (89046 inhabitants)

85 Km NW of Arezzo (99543 inhabitants)

88 Km SE of Reggio nell'Emilia (171345 inhabitants)

89 Km W of Rimini (147750 inhabitants)

95 Km N of Siena (53903 inhabitants)

98 Km NE of Pisa (89158 inhabitants)

Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.

Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.

Shakemap

Not available maps for this sismic event.

Felt maps

Not available maps for this sismic event.

Locations history

Type	Magnitude	Date and Time (UTC)	Latitude	Longitude	Depth (km)	Published time (UTC)	Author	Location ID
Reviewed Rev100	ML 2.0	2023-01-29 07:29:16	44.1678	11.4568	20	2023-01-29 07:45:10	Sala Sismica INGV-Roma	113879951

Preferred location and magnitude until now.

Origin information

Origin

Field	Value
Time (UTC)	2023-01-29 07:29:16 ± 0.1
Latitude	44.1678 ± 0.0063
Longitude	11.4568 ± 0.0088
Depth (km)	20 ± 1 (from location)
Evaluation mode of Origin	manual
Evaluation status of Origin	reviewed
Version	100 -> SURVEY-INGV
Event type	earthquake
Origin ID	113879951

Uncertainty

Field	Value
Preferred uncertainty description	uncertainty ellipse
Semi-major axis of confidence ellipse (meter)	734
Semi-minor axis of confidence ellipse (meter)	225
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)	304
Circular confidence region, given by single value of horizontal uncertainty (meter)	730.0
Confidence level of the uncertainty (%)	68

Quality

Field	Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)	80
Number of associated phases, regardless of their use for origin computation	54
Number of defining phases	40
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)	1.50277
Number of stations at which the event was observed	43
Number of stations from which data was used for origin computation	30

Magnitude information

ML:2.0

Field	Value
Value	2.0
Uncertainty	0.3
Num. used stations	48
Type of magnitude	ML
Reference to an origin	113879951
Agency	INGV
Autore	Sala Sismica INGV-Roma
Time of creation (UTC)	2023-01-29 07:45:10

Picking and Arrival

SCNL	Time	Uncertainty	Polarity	Evaluation_mode	Phase	Azimuth	Distance	Takeoff_angle	Residual	Weight
IV.SALB.HHZ.	2023-01-29T07:30:53.73	3.0	positive	manual	Pg				15.62	0
GU.CANO.HHZ.	2023-01-29T07:30:27.64	3.0	undecidable	manual	Sn				6.3	0
RF.GEPF.HHZ.	2023-01-29T07:30:22.04	3.0	undecidable	manual	Sn				-2.07	0
IV.PAOL.HHZ.	2023-01-29T07:30:13.06	3.0	undecidable	manual	Pn				-1.14	0
ST.VARA.EHZ.	2023-01-29T07:30:05.38	3.0	undecidable	manual	Sn				-1.2	0
IV.VVLD.HHZ.	2023-01-29T07:30:02.58	3.0	undecidable	manual	Pn				3.39	0
IV.MCI.EHZ.	2023-01-29T07:30:02.24	3.0	positive	manual	Pn				-2.37	0
ST.OZOL.EHZ.	2023-01-29T07:29:52.43	3.0	positive	manual	Pn				0.57	0
ST.ZIAN.EHZ.	2023-01-29T07:29:49.81	3.0	negative	manual	Pn				-0.08	0
NI.POLC.HHZ.	2023-01-29T07:29:47.70	3.0	positive	manual	Pn				-0.71	0
ST.VARA.EHZ.	2023-01-29T07:29:43.97	3.0	negative	manual	Pn				-0.34	0
IV.ROVR.HHZ.	2023-01-29T07:29:43.44	0.1	undecidable	manual	P	350	1.5028	54	0.67	65
IV.OSSC.HHZ.	2023-01-29T07:29:39.43	0.6	undecidable	manual	S	193	0.6619	99	0.96	35
IV.ZOVE.EHZ.	2023-01-29T07:29:39.58	0.6	negative	manual	P	1	1.2851	94	-0.1	40
IV.CSNT.HHZ.	2023-01-29T07:29:39.82	0.6	undecidable	manual	S	190	0.7042	98	0.09	46
IV.TRIF.CHZ.	2023-01-29T07:29:39.12	3.0	undecidable	manual	P				2.87	0
GU.GRAM.HHZ.	2023-01-29T07:29:37.80	3.0	negative	manual	P				2.57	0
IV.MPAG.EHZ.	2023-01-29T07:29:36.06	0.1	undecidable	manual	P	119	1.0819	95	-0.14	85
IV.ATVO.HHZ.	2023-01-29T07:29:35.64	0.6	negative	manual	P	139	1.0423	95	0.11	42
IV.ATPI.EHZ.	2023-01-29T07:29:34.78	0.1	undecidable	manual	P	136	0.9893	95	0.15	85
GU.EQUI.HHZ.	2023-01-29T07:29:34.40	0.6	positive	manual	P	270	0.9344	96	0.7	39
IV.CRMI.HHZ.	2023-01-29T07:29:34.62	0.6	undecidable	manual	S	223	0.5063	102	0.69	42
IV.ATMC.EHZ.	2023-01-29T07:29:33.02	0.1	undecidable	manual	P	143	0.8948	96	0	90
IV.CAFI.HHZ.	2023-01-29T07:29:33.19	0.1	undecidable	manual	P	156	0.9155	96	-0.18	87
IV.BADI.EHZ.	2023-01-29T07:29:32.47	0.1	undecidable	manual	P	139	0.8687	96	-0.11	89
IV.SSP9.EHZ.	2023-01-29T07:29:31.09	0.6	undecidable	manual	P	140	0.7671	97	0.24	44
IV.SFI.EHZ.	2023-01-29T07:29:31.32	0.6	undecidable	manual	S	133	0.3840	107	0.89	37
MN.VLC.HHZ.	2023-01-29T07:29:31.61	3.0	negative	manual	P				0.49	0
IV.PII.HHZ.	2023-01-29T07:29:31.22	0.1	negative	manual	P	237	0.8049	97	-0.28	86
IV.PARC.HHZ.	2023-01-29T07:29:30.34	0.1	undecidable	manual	P	132	0.7653	97	-0.49	84
IV.CPGN.EHE.	2023-01-29T07:29:30.73	0.1	undecidable	manual	P	120	0.7213	98	0.66	78
IV.CSNT.HHZ.	2023-01-29T07:29:29.54	0.3	undecidable	manual	P	190	0.7042	98	-0.25	67
IV.CRE.HHZ.	2023-01-29T07:29:28.74	0.1	undecidable	manual	P	147	0.6538	99	-0.2	92
Y1.T1757.EHE.	2023-01-29T07:29:28.68	0.1	undecidable	manual	P	27	0.6178	99	0.35	90
IV.OSSC.HHZ.	2023-01-29T07:29:28.78	0.3	negative	manual	P	193	0.6619	99	-0.28	67
IV.BDI.HHZ.	2023-01-29T07:29:28.20	0.6	positive	manual	P	261	0.6268	99	-0.28	44
IV.RUFI.EHN.	2023-01-29T07:29:28.94	0.6	undecidable	manual	S	173	0.3318	110	-0.01	50
GU.POPM.HHZ.	2023-01-29T07:29:27.39	0.3	negative	manual	P	257	0.5171	102	0.76	61
IV.CRMI.HHZ.	2023-01-29T07:29:26.36	0.1	negative	manual	P	223	0.5063	102	-0.09	95
IV.VMGN.HHE.	2023-01-29T07:29:26.24	0.6	undecidable	manual	S	166	0.2203	122	0.28	48
IV.BRIS.HHZ.	2023-01-29T07:29:26.55	0.3	undecidable	manual	S	76	0.2293	120	0.36	71
IV.BOSL.HHZ.	2023-01-29T07:29:26.94	0.6	undecidable	manual	S	194	0.2437	118	0.36	48
IV.LMD.HHZ.	2023-01-29T07:29:25.82	0.3	undecidable	manual	S	117	0.2014	125	0.33	72
Y1.T1756.HNE.	2023-01-29T07:29:25.84	0.1	undecidable	manual	P	103	0.4757	103	-0.09	97
IV.SEI.HHZ.	2023-01-29T07:29:24.52	0.6	undecidable	manual	S	212	0.1340	138	0.54	47
IV.RUFI.EHN.	2023-01-29T07:29:23.30	0.1	undecidable	manual	P	173	0.3318	110	-0.27	96
IV.SFI.EHZ.	2023-01-29T07:29:23.99	0.1	positive	manual	P	133	0.3840	107	-0.43	92
IV.IMOL.EHZ.	2023-01-29T07:29:22.77	0.3	positive	manual	P	47	0.2806	114	0.01	77
IV.BOSL.HHZ.	2023-01-29T07:29:22.05	0.1	undecidable	manual	P	194	0.2437	118	-0.15	100
IV.FNVD.HHZ.	2023-01-29T07:29:21.33	0.3	positive	manual	P	270	0.2392	119	-0.8	60
IV.VMGN.HHE.	2023-01-29T07:29:21.64	0.1	undecidable	manual	P	166	0.2203	122	-0.2	100
IV.BRIS.HHZ.	2023-01-29T07:29:21.57	0.1	negative	manual	P	76	0.2293	120	-0.41	95
IV.LMD.HHZ.	2023-01-29T07:29:21.06	0.1	positive	manual	P	117	0.2014	125	-0.51	94
IV.SEI.HHZ.	2023-01-29T07:29:20.45	0.6	undecidable	manual	P	212	0.1340	138	-0.25	50

Station Magnitude and Amplitude

SCNL	mag	Generic_amplitude	Period	Type	Category	Unit	Time_window_reference
IV.SEI.HHN.	ML:3.0	0.006764999999999999	1.46	AML	other	m	2023-01-29T07:29:24.96
IV.SEI.HHE.	ML:3.0	0.00615	0.4	AML	other	m	2023-01-29T07:29:25.20
IV.LMD.HHE.	ML:2.3	0.0010545	1.32	AML	other	m	2023-01-29T07:29:25.96
IV.LMD.HHN.	ML:2.5	0.0015699999999999998	1.66	AML	other	m	2023-01-29T07:29:25.97
IV.BRIS.HHN.	ML:1.9	0.000336	1.36	AML	other	m	2023-01-29T07:29:26.23
IV.BRIS.HNN.	ML:2.3	0.000987	1.36	AML	other	m	2023-01-29T07:29:26.23
IV.BRIS.HHE.	ML:2.0	0.0005064999999999999	1.36	AML	other	m	2023-01-29T07:29:27.22
IV.BRIS.HNE.	ML:2.4	0.0012155	0.4	AML	other	m	2023-01-29T07:29:27.22
IV.FNVD.HHE.	ML:1.7	0.000244	0.6	AML	other	m	2023-01-29T07:29:27.56
IV.FNVD.HHN.	ML:1.7	0.0002305	1.1	AML	other	m	2023-01-29T07:29:29.39
IV.IMOL.HNE.	ML:2.3	0.0008505	0.9	AML	other	m	2023-01-29T07:29:30.48
IV.IMOL.HNN.	ML:2.4	0.0009155	0.26	AML	other	m	2023-01-29T07:29:30.75
IV.BOSL.HHN.	ML:1.4	0.00010055	0.84	AML	other	m	2023-01-29T07:29:31.49
IV.SFI.HNE.	ML:2.0	0.00029099999999999997	0.36	AML	other	m	2023-01-29T07:29:32.51
IV.SFI.EHN.	ML:2.0	0.000264	0.9	AML	other	m	2023-01-29T07:29:33.99
IV.BOSL.HHE.	ML:1.3	0.00008505000000000001	1.04	AML	other	m	2023-01-29T07:29:33.63
IV.SFI.EHE.	ML:2.0	0.0002875	0.36	AML	other	m	2023-01-29T07:29:34.41
IV.CRMI.HHE.	ML:1.6	0.00008575	1.68	AML	other	m	2023-01-29T07:29:34.86
IV.SFI.HNN.	ML:2.0	0.0002825	1.4	AML	other	m	2023-01-29T07:29:35.73
IV.CRMI.HHN.	ML:1.7	0.000117	0.7	AML	other	m	2023-01-29T07:29:35.30
GU.POPM.HHN.	ML:1.8	0.00013800000000000002	0.54	AML	other	m	2023-01-29T07:29:36.15
GU.POPM.HHE.	ML:1.7	0.0001028	1.12	AML	other	m	2023-01-29T07:29:36.93
IV.OSSC.HHN.	ML:1.7	0.00007250000000000001	0.42	AML	other	m	2023-01-29T07:29:40.57
IV.BDI.HHN.	ML:1.9	0.0001305	1.58	AML	other	m	2023-01-29T07:29:40.12
IV.BDI.HHE.	ML:1.7	0.00008335	0.98	AML	other	m	2023-01-29T07:29:41.55
IV.OSSC.HHE.	ML:1.8	0.00008269999999999999	1.4	AML	other	m	2023-01-29T07:29:42.27
IV.CSNT.HHE.	ML:1.8	0.00007950000000000001	1.34	AML	other	m	2023-01-29T07:29:43.10
IV.CRE.HHN.	ML:2.0	0.000141	0.28	AML	other	m	2023-01-29T07:29:43.14
IV.CRE.HHE.	ML:1.9	0.00011899999999999999	0.42	AML	other	m	2023-01-29T07:29:43.55
IV.PARC.HHN.	ML:1.8	0.00007935	0.54	AML	other	m	2023-01-29T07:29:45.87
IV.PII.HHE.	ML:1.9	0.0000906	0.62	AML	other	m	2023-01-29T07:29:45.65
IV.PII.HHN.	ML:1.9	0.00008319999999999999	0.46	AML	other	m	2023-01-29T07:29:47.38
IV.CAFI.HHE.	ML:1.8	0.0000632	0.62	AML	other	m	2023-01-29T07:29:48.49
MN.VLC.HHE.	ML:1.6	0.00005135	0.68	AML	other	m	2023-01-29T07:29:48.38
MN.VLC.HHN.	ML:1.7	0.0000631	0.52	AML	other	m	2023-01-29T07:29:49.44
IV.PARC.HHE.	ML:1.9	0.00009035	0.66	AML	other	m	2023-01-29T07:29:49.81
IV.CSNT.HHN.	ML:2.0	0.000146	1.34	AML	other	m	2023-01-29T07:29:49.18
IV.BADI.EHN.	ML:1.8	0.0000699	0.62	AML	other	m	2023-01-29T07:29:50.92
IV.CAFI.HHN.	ML:1.7	0.0000482	0.42	AML	other	m	2023-01-29T07:29:50.94
IV.BADI.EHE.	ML:2.0	0.00009900000000000001	0.6	AML	other	m	2023-01-29T07:29:52.40
IV.ATVO.HHE.	ML:2.1	0.0000989	0.48	AML	other	m	2023-01-29T07:29:55.30
IV.ATVO.HHN.	ML:2.0	0.00007445	0.86	AML	other	m	2023-01-29T07:29:59.50
IV.ROVR.HHN.	ML:2.6	0.00018449999999999999	0.26	AML	other	m	2023-01-29T07:30:05.22
IV.ROVR.HNE.	ML:2.6	0.00015250000000000002	0.92	AML	other	m	2023-01-29T07:30:05.40
IV.ROVR.HHE.	ML:2.3	0.00007865	0.38	AML	other	m	2023-01-29T07:30:06.28
ST.VARA.EHN.	ML:2.4	0.00008444999999999999	0.58	AML	other	m	2023-01-29T07:30:09.24
IV.ROVR.HNN.	ML:2.7	0.00021550000000000003	0.68	AML	other	m	2023-01-29T07:30:12.09
ST.VARA.EHE.	ML:2.5	0.0001115	1.02	AML	other	m	2023-01-29T07:30:12.94

TDMT - Time Domain Moment Tensor

Not available TDMT solution for this seismic event.

Fault Plane solutions in the area

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.

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

Earthquake with magnitude of ML 2.0 on date 29-01-2023 and time 07:29:16 (UTC) in region 6 km SW Castel del Rio (BO)