Earthquake with magnitude of ML 0.9 on date 22-01-2024 and time 03:43:56 (UTC) in region 3 km N Firenzuola (FI)

A magnitude ML 0.9 earthquake occured in region: 3 km N Firenzuola (FI), on

  • 22-01-2024 03:43:56 (UTC)
  • 22-01-2024 04:43:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1480, 11.3910 at 11 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Firenzuola FI 3 4726 4726
Monghidoro BO 10 3749 8475
Castel del Rio BO 12 1246 9721
Palazzuolo sul Senio FI 13 1154 10875
San Benedetto Val di Sambro BO 15 4315 15190
Loiano BO 15 4294 19484
Monzuno BO 17 6328 25812
Fontanelice BO 18 1943 27755
Castiglione dei Pepoli BO 19 5648 33403
Marradi FI 19 3139 36542
Monterenzio BO 20 6035 42577

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SW of Imola (69797 inhabitants)
38 Km NE of Prato (191150 inhabitants)
39 Km S of Bologna (386663 inhabitants)
42 Km W of Faenza (58541 inhabitants)
43 Km N of Firenze (382808 inhabitants)
45 Km NE of Pistoia (90315 inhabitants)
46 Km NE of Scandicci (50609 inhabitants)
53 Km W of Forlì (117913 inhabitants)
67 Km SE of Modena (184973 inhabitants)
68 Km W of Cesena (96758 inhabitants)
71 Km W of Ravenna (159116 inhabitants)
79 Km E of Lucca (89046 inhabitants)
79 Km S of Ferrara (133155 inhabitants)
81 Km SE of Carpi (70699 inhabitants)
85 Km NW of Arezzo (99543 inhabitants)
86 Km SE of Reggio nell'Emilia (171345 inhabitants)
92 Km N of Siena (53903 inhabitants)
93 Km NE of Pisa (89158 inhabitants)
94 Km W of Rimini (147750 inhabitants)
96 Km E of Viareggio (62467 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 0.9 2024-01-22
03:43:56
44.1475 11.3913 11 2024-01-22
04:30:23
Sala Sismica INGV-Roma 124785881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-22 03:43:56 ± 0.14
Latitude 44.1475 ± 0.0081
Longitude 11.3913 ± 0.0100
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124785881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 993
Semi-minor axis of confidence ellipse (meter) 748
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 331
Circular confidence region, given by single value of horizontal uncertainty (meter) 990.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.36063
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 124785881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-22 04:30:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VMGN.HHZ. 2024-01-22T03:44:05.02 0.3 undecidable manual S 152 24.1536 50 -0.1 73
IV.BOSL.HHN. 2024-01-22T03:44:05.34 0.3 undecidable manual S 183 24.0537 50 0.26 70
IV.LMD.HHZ. 2024-01-22T03:44:05.58 0.3 undecidable manual S 107 26.3514 50 -0.11 72
IV.MOCL.EHZ. 2024-01-22T03:44:04.84 0.3 undecidable manual S 227 23.0547 50 0.02 74
IV.RUFI.EHZ. 2024-01-22T03:44:03.85 0.6 undecidable manual P 165 35.6421 50 0.77 39
IV.PSL.EHZ. 2024-01-22T03:44:03.27 0.1 undecidable manual P 248 40.0266 50 -0.48 87
IV.VMGN.HHZ. 2024-01-22T03:44:01.29 0.1 undecidable manual P 152 24.1536 50 -0.03 98
IV.MTRZ.HHZ. 2024-01-22T03:44:01.26 0.6 positive manual P 8 18.5703 120 0.84 39
IV.BOSL.HHN. 2024-01-22T03:44:01.36 0.3 undecidable manual P 183 24.0537 50 0.06 73
IV.LMD.HHZ. 2024-01-22T03:44:01.41 0.3 undecidable manual P 107 26.3514 50 -0.24 70
IV.SEI.HHE. 2024-01-22T03:44:01.27 0.3 undecidable manual S 194 10.6782 135 -0.11 74
IV.MOCL.EHZ. 2024-01-22T03:44:01.28 0.3 undecidable manual P 227 23.0547 50 0.14 72
IV.SEI.HHE. 2024-01-22T03:43:59.22 0.1 undecidable manual P 194 10.6782 135 0.06 100
IV.VISG.HHE. 2024-01-22T03:43:58.38 0.1 undecidable manual P 37 5.6943 152 -0.19 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRZ.HHE. ML:1.0 0.00008368171000000001 0.6816 AML other m 2024-01-22T03:44:08.00
IV.MTRZ.HHN. ML:1.2 0.00012133681000000001 0.4192 AML other m 2024-01-22T03:44:06.30
IV.MTRZ.HNE. ML:1.3 0.000143494085 0.608 AML other m 2024-01-22T03:44:10.09
IV.MTRZ.HNN. ML:1.4 0.00017907745 0.7872 AML other m 2024-01-22T03:44:09.94
IV.MOCL.EHE. ML:0.9 0.000051656195 0.16 AML other m 2024-01-22T03:44:06.46
IV.MOCL.EHN. ML:0.9 0.000047514585 0.1184 AML other m 2024-01-22T03:44:05.73
IV.VMGN.HHE. ML:0.5 0.000018039719999999997 2.08 AML other m 2024-01-22T03:44:00.32
IV.VMGN.HHN. ML:0.6 0.000023097825 0.1024 AML other m 2024-01-22T03:44:05.45
IV.LMD.HHE. ML:0.6 0.000021211039500000002 45.7392 AML other m 2024-01-22T03:44:01.60
IV.LMD.HHN. ML:1.0 0.00005009943999999999 0.1216 AML other m 2024-01-22T03:44:05.90
IV.PSL.EHE. ML:0.9 0.000026110235000000002 1.1392 AML other m 2024-01-22T03:44:02.75
IV.PSL.EHN. ML:0.9 0.000023435100000000002 0.2624 AML other m 2024-01-22T03:44:09.79
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