Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 23-01-2024 and time 20:36:32 (Italy) in region 5 km NE Faenza (RA)

A magnitude ML 1.8 earthquake occured in region: 5 km NE Faenza (RA), on

  • 23-01-2024 19:36:32 (UTC)
  • 23-01-2024 20:36:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3260, 11.9030 at 16 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
Faenza RA 5 58541 58541
Solarolo RA 6 4488 63029
Cotignola RA 7 7474 70503
Castel Bolognese RA 8 9554 80057
Bagnara di Romagna RA 9 2429 82486
Lugo RA 11 32390 114876
Mordano BO 11 4760 119636
Russi RA 12 12247 131883
Bagnacavallo RA 12 16739 148622
Sant'Agata sul Santerno RA 13 2862 151484
Massa Lombarda RA 15 10653 162137
Riolo Terme RA 15 5720 167857
Imola BO 15 69797 237654
Brisighella RA 16 7639 245293
Forlì FC 16 117913 363206
Fusignano RA 17 8222 371428
Castrocaro Terme e Terra del Sole FC 17 6426 377854

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NE of Faenza (58541 inhabitants)
15 Km E of Imola (69797 inhabitants)
16 Km NW of Forlì (117913 inhabitants)
26 Km W of Ravenna (159116 inhabitants)
34 Km NW of Cesena (96758 inhabitants)
48 Km E of Bologna (386663 inhabitants)
61 Km W of Rimini (147750 inhabitants)
61 Km SE of Ferrara (133155 inhabitants)
81 Km NE of Firenze (382808 inhabitants)
81 Km NE of Prato (191150 inhabitants)
83 Km S of Rovigo (51867 inhabitants)
85 Km E of Modena (184973 inhabitants)
85 Km NE of Scandicci (50609 inhabitants)
90 Km E of Pistoia (90315 inhabitants)
93 Km W of Pesaro (94582 inhabitants)
95 Km SE of Carpi (70699 inhabitants)
96 Km N of Arezzo (99543 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 2024-01-23
19:36:32		 44.3262 11.9028 16 2024-01-23
20:01:14		 Sala Sismica INGV-Roma 124815371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-23 19:36:32 ± 0.21
Latitude 44.3262 ± 0.0117
Longitude 11.9028 ± 0.0113
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124815371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1064
Semi-minor axis of confidence ellipse (meter) 927
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 12
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) 117
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.55133
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 124815371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-23 20:01:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
AC.KBN.HHZ.00 2024-01-23T19:38:09.67 3.0 undecidable manual Pn 6.24 0
IV.NOCI.HHZ. 2024-01-23T19:38:04.66 3.0 negative manual Pg 27.84 0
IV.PAOL.HHZ. 2024-01-23T19:37:44.21 3.0 negative manual Pg 20.889999 0
GU.CIRO.HHZ. 2024-01-23T19:37:07.11 3.0 positive manual Pn 0.43 0
IV.CSP1.EHZ. 2024-01-23T19:37:01.16 1.0 undecidable manual P 142 172.1943 54 0.75 15
IV.TEOL.HNN. 2024-01-23T19:36:52.07 1.0 undecidable manual P 351 116.2947 93 -0.09 21
IV.MNTT.EHZ. 2024-01-23T19:36:51.57 3.0 positive manual Pn -2.32 0
IV.MPAG.EHZ. 2024-01-23T19:36:50.79 0.3 undecidable manual P 138 103.2189 93 0.64 57
IV.PIEI.HHZ. 2024-01-23T19:36:49.38 0.6 undecidable manual P 150 101.2209 93 -0.46 40
IV.PDN8.EHZ. 2024-01-23T19:36:48.78 3.0 undecidable manual P 0
IV.VISG.HHZ. 2024-01-23T19:36:45.81 0.3 undecidable manual S 248 40.2264 100 -0.3 71
IV.CRTC.HHZ. 2024-01-23T19:36:43.35 3.0 positive manual Pn 0.06 0
IV.SEI.HHZ. 2024-01-23T19:36:42.38 0.3 undecidable manual P 235 52.8027 97 -0.02 73
IT.MOG.HNN. 2024-01-23T19:36:41.42 0.6 undecidable manual S 212 20.3685 116 0.37 48
IV.VISG.HHZ. 2024-01-23T19:36:40.17 0.3 undecidable manual P 248 40.2264 100 -0.32 70
IV.IMOL.EHZ. 2024-01-23T19:36:40.20 0.6 undecidable manual S 286 13.2756 132 0.74 42
IV.BRSN.EHZ. 2024-01-23T19:36:40.19 0.6 undecidable manual S 108 14.874 128 0.4 48
IT.MCS.HGE. 2024-01-23T19:36:40.21 0.3 undecidable manual P 156 40.3263 100 -0.29 70
IV.MTRZ.HNZ. 2024-01-23T19:36:40.67 1.0 undecidable manual P 268 37.9287 101 0.52 22
IT.MOG.HNN. 2024-01-23T19:36:37.72 0.1 undecidable manual P 212 20.3685 116 0.15 100
IT.FAZ.HNE. 2024-01-23T19:36:37.88 0.3 undecidable manual S 197 3.2967 166 -0.18 77
IV.IMOL.EHZ. 2024-01-23T19:36:36.67 0.3 undecidable manual P 286 13.2756 132 0.02 78
IV.BRSN.EHZ. 2024-01-23T19:36:36.76 0.3 undecidable manual P 108 14.874 128 -0.08 77
IT.FAZ.HNE. 2024-01-23T19:36:35.44 0.1 undecidable manual P 197 3.2967 166 -0.41 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IMOL.HNN. ML:2.1 0.0009625 0.26 AML other m 2024-01-23T19:36:42.04
IV.IMOL.HNE. ML:2.1 0.000979 0.28 AML other m 2024-01-23T19:36:42.15
IV.BRSN.EHE. ML:2.2 0.0013725165000000002 0.2176 AML other m 2024-01-23T19:36:42.20
IV.BRSN.HNE. ML:2.4 0.001827725 0.2432 AML other m 2024-01-23T19:36:42.22
IV.BRSN.HNN. ML:2.3 0.0015710035 0.2816 AML other m 2024-01-23T19:36:42.95
IV.BRSN.EHN. ML:2.3 0.0015480659999999999 0.2816 AML other m 2024-01-23T19:36:42.95
IV.VISG.HHN. ML:1.2 0.000051000000000000006 0.16 AML other m 2024-01-23T19:36:49.19
IV.VISG.HHE. ML:1.1 0.00003845 1.54 AML other m 2024-01-23T19:36:49.85
IV.SEI.HHN. ML:1.7 0.00011742365000000001 0.2944 AML other m 2024-01-23T19:36:54.48
IV.SEI.HHE. ML:1.6 0.0000849 0.4 AML other m 2024-01-23T19:37:01.22
IV.PIEI.HHN. ML:1.2 0.0000140825985 0.32 AML other m 2024-01-23T19:37:10.14
IV.PIEI.HHE. ML:1.4 0.00002557486 0.2176 AML other m 2024-01-23T19:37:10.04
IV.IMOL.EHE. ML:1.8 0.0005318085 0.3456 AML other m 2024-01-23T19:36:41.64
IV.IMOL.EHN. ML:1.4 0.00022843835000000006 0.1792 AML other m 2024-01-23T19:36:41.69
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